BOOK REVIEW: Hallucinations by Oliver Sacks

HallucinationsHallucinations by Oliver Sacks
My rating: 5 of 5 stars

Amazon page

 

Hallucinations are among the most captivating, yet misunderstood, phenomena of the mind. In the popular imagination, they are synonymous with losing one’s grip on reality and are considered evidence of a full-blown psychosis. However, there are a great variety of causes and forms of hallucination, many of which occur among the sane. What Sacks provides in this book is a survey of the forms of hallucination through exploration of cases and anecdotes. To emphasize the point that hallucinations aren’t just for the insane, Sacks doesn’t arrange the book around the idea sanity and insanity. Cases of mental illness are peppered throughout, but there are even more cases of people who fully realize that their hallucinated sensory experiences aren’t real. In fact, he starts with Charles Bonnet Syndrome, hallucinations among blind individuals who are often scared to discuss the phenomena for fear they will be labeled insane even though they know they aren’t really seeing anything. (The brain’s abhorrence of under-stimulation is a recurring theme in the book.)

As mentioned, the approach of the book is to discuss cases of hallucination, and not so much to delve into the research on causes and treatments. This anecdotal approach makes the book readable and offers a unique and intimate insight into hallucination, but it doesn’t drill down into the brain science as much as some might like. This will no doubt be a positive for many, and a negative for others. The author describes several of his own hallucinatory experiences related to drug use, drug withdrawal, and migraine headaches. As I understand it, that level of candor was par for the course for Sacks (though this is the first of his books that I’ve read.) At any rate, his personal experience offers a particularly vivid portrait, and moves the book beyond the sterile feel often found in scientific works.

The book consists of 15 chapters, organized by types / causes of hallucination. After an introduction and the aforementioned chapter on Charles Bonnet Syndrome, there’s a chapter on sensory deprivation hallucinations that’s aptly entitled “the prisoner’s cinema.” Chapters three and four are on olfactory and auditory hallucinations, respectively. The fifth chapter focuses on cases of hallucination experienced by those with Parkinson’s Disease. Chapter six is entitled “Altered States,” but it deals largely with drug-induced hallucinations (it should be pointed out other “altered states” of consciousness, notably sleep, are dealt with in other places), and it’s where Sacks’ personal story begins to be detailed. The next chapter deals with migraine headache related phenomena, and—as the author suffered from such headaches—his story is also imprinted on this chapter.

Chapter eight deals with epilepsy, and, like the Sam Kean book that I reviewed yesterday, is entitled “The Sacred Disease.” That name derives from the fact that those who develop temporal lobe epilepsy are sometimes known to become spontaneously hyper-spiritual in the process. In fact, many scientists now believe that Joan of Arc, Saint Paul (the Apostle), and [for my Indian readers] Ramakrishna were afflicted by this ailment. (Not based on their high degree of spirituality, but rather on accounts of sensory phenomena they were said to have experienced.)

Chapter nine examines cases related to hemianopia—a situation in which one occipital lobe is damaged resulting in a kind of “blindness” in half one’s visual field. While people think of blindness as being a problem with the eyes, it’s possible to have perfectly good eyes and optic nerves and be blind (on a conscious level) due to brain’s incapacity to process the input it is receiving. (Incidentally, in his book “Subliminal” Leonard Mlodinow describes engrossing cases of people who were blind due to brain damage, but–owing to a redundant subconscious systems–they could walk around without running into obstacles.)

Chapter ten describes cases associated with delirium, a common cause of hallucinations that can be the side-effect of any number of physical problems including fever, blood sugar imbalance, and liver failure.

The next two chapters are about sleep-related sensory imaginings. Chapter eleven details cases of hypnagogic and hypnopompic imagery, which are what we see as we are on the edge of falling asleep or awaking, respectively. Hypnagogic hallucinations may be as simple as shifting shapes, or more elaborate. If you’ve gotten this far in the book without any experience that corresponds to what Sack’s is describing, you’ll almost certainly have some experience with hypnagogic images. If not, you should stop consciously counting sheep (or whatever other daydreaming you do as you fall asleep) and just watch what your mind projects. You’ll know it when you see it because you won’t be able to control the imagery (though you can distract over it with conscious thought) and—as in dreams—it probably won’t make a lick of sense. Hypnopompic images are quite different, less widely experienced, and often more disconcerting. Chapter twelve presents cases dealing with narcolepsy (random spontaneous falling asleep) and sleep paralysis, a common experience on the trailing edge of sleep in which one can’t move and which often comes with imagined sensations of a more nefarious variety—hence the widespread lore of night hags and the like.

Chapter thirteen scrutinizes cases that are associated with traumatic events from one’s past. These can involve sightings of ghosts of departed loved ones or replays (flashbacks) of the traumatizing event. This chapter, in a discussion of dissociation, also foreshadows the phenomena of out-of-body (OOB) experience that’s dealt with in more detail in chapter 14. The theme of that penultimate chapter is seeing oneself. Beyond OOB, it deals with a variety of hallucinations of oneself, including those in which one’s body appears distorted (i.e. so-called “Alice in Wonderland” Syndrome.)

The last chapter discusses hallucinations in the tactile domain, and, specifically, the most widely investigated form of these phenomena—the phantom limb. Phantom limb syndrome is experienced by amputees, many of whom can still feel the lost limb. This has resulted in nightmarish scenarios in which an awaking patient complains of an itch on the sole of his or her foot only to be shown that they have no legs from the knee down.

There are no graphics in the book, but, because it’s based around cases, it doesn’t need them for clarification of complex ideas. There are footnotes, as well as a bibliography.

I found this book to be absorbing, and I learned a great deal from it. I’d recommend it for anyone who seeks greater insight into hallucinations or unusual mental phenomena more generally.

View all my reviews

BOOK REVIEW: Remember When by Scientific American

Remember When?Remember When? by Scientific American
My rating: 3 of 5 stars

Amazon page

 

This book is part of a series put out by Scientific American magazine that collects articles on a specific topic of interest, in this case memory.

I’ll get straight to the point:

Pros: The style is readable and concise, and the book is well-organized and full of fascinating tidbits [Note: when I say “well-organized,” it’s clearly a collection of past articles of various types, and so there are a mix of short pieces, long-ish pieces, and an interview or two. However, these inconsistent “chapters” are placed in sections in a logical fashion. Furthermore, I expected much more repetitiveness from this type of collection than there was.]

Cons: First, the Kindle version that I read had lots of typos, and they were systematic typos. [Fun fact, considering this is a book on memory. My memory was that this book had typos throughout, but when I looked back through to review it, I noticed it was only some chapters, but—influentially—including the last.] By “systematic typos” I mean the same characters were replaced throughout with the wrong character(s.) While this isn’t the kind of typo that leads to confusion, it’s the kind that makes one say, “Did you really not have anyone look this over after it was machine-converted, you lazy …?” Second, because it’s a collection of magazine articles, one might see a piece from recent years right next to one from the 1990’s. This wouldn’t necessarily be anything to concern one, and might even be a positive. However, once one has seen the aforementioned laziness, it makes one wonder whether half the information isn’t outdated.

The 30 pieces that make up this collection are divided among seven sections to provide a logical organization and progression of the material.

Section 1 explains what memory is and why it seems to work so well in some cases but so poorly in others.

The second section explores the neuroscience of memory and how the brain turns experiences into memories.

Section 3 offers insight into the connection between learning and memory. This describes some fascinating discoveries on the importance of white matter (not the cells that store the memories, but the ones that connect those that do) and the role of sleep.

Section 4 is where it really gets interesting. This section investigates amnesia, hypnosis, and déjà vu.

The fifth section considers a few of the many ways that memory can fail. Besides discussing how false memories are created and attempts to erase traumatic memories, the section also explores the connection between emotion and memory.

Section 6 answers why memory gets worse with age, with discussion of a few of the methods for reducing this tendency.

The last section describes some of the methods used to improve memory. Here, I will offer the same warning as I did for the last review I did on a book of this topic (i.e. “Memory: A Very Short Introduction”), which is to say that if this is your primary purpose for buying the book, you probably want to look for a more specialized book. (Where the AVSI book was a cursory summation of proven techniques, this one focuses on the science of the moment [e.g. experimental medicines and blueberries] and not well-established techniques.)

The graphics are those from the magazine, and, therefore, tend to be detailed and “slick.” This can be a disadvantage when reading on a base model Kindle, such as mine. Even with the graphics expanded, the font is tiny and hard to read. Also, the color graphics on a black-and-white device would likely be clearer as simple line diagrams rather than complex computer renderings. However, most of the articles have little to no graphics, and so it’s not a problem that comes up with great frequency.

I’ll compare this book with the Oxford University Press “A Very Short Introduction” on the same topic that I just reviewed because they are clear competitors. This book covers a broader range of topics, including some intriguing ones such as: hypnosis and memory, déjà vu, the role of fitness on memory, and more detailed information about the connection between sleep and memory. In other words, this book is full of the latest (at the time) research of a nature intended to attract popular science magazine readers. However, the AVSI book is more concisely arranged to get a neophyte up to speed on memory without offering extraneous information. I suspect the AVSI book will age better. The Scientific American book has a fair amount of current events reporting that may be overturned (if some of it hasn’t already been) by subsequent research. The AVSI book was much more easily readable on my Kindle.

I found this book to be interesting and informative—though not without significant flaws. Overall, I’d recommend it for those wanting to learn about the research of recent decades on memory.

View all my reviews

BOOK REVIEW: Memory: A Very Short Introduction by Jonathan K. Foster

Memory: A Very Short IntroductionMemory: A Very Short Introduction by Jonathan K. Foster
My rating: 4 of 5 stars

Amazon page

 

Everything we think, do, or say relies upon–or is influenced by–memory, and yet our memories offer a much lower fidelity and more highly corruptible recording than we tend to think. Even those events that lead to “flashbulb” memory (i.e. JFK’s assassination, 9-11 terror attacks, or the 3-11 tsunami in Japan) aren’t remembered particularly well. You may remember where you were and what you were doing in broad brushstrokes, but you probably wouldn’t test well on the actual details of the event. Old memories are constantly over-lain with a corresponding loss of accuracy. This brief introduction explains the basics of how memory works, and—as importantly—how it doesn’t.

The book is part of Oxford University Press’s “A Very Short Introduction” [AVSI] series, and it follows that approach. It’s under 150 pages, and written for someone looking for a “ground-up” explanation of the subject. It has minimal ancillary material, just a couple of pages of “Further Reading” after the book’s seven chapters. There are a few black-and-white graphics throughout the book, a combination of photos and diagrams.

Chapter 1 introduces the reader to what memory is and what it isn’t. One learns about the three-part process of memory (encoding, storage, and retrieval), an idea which will be important throughout the rest of the book because these stages mirror the structure of memory failures and the means to build a better memory.

Chapter 2 explores the landscape of memory, which is a great deal more complex than the short-term v long-term dichotomy that we all learned in school. There’s working memory, procedural memory, semantic memory, and episodic memory.

In chapter 3, the reader learns about how memories are retrieved or recalled and the immense power of context in the process.

Chapter 4 explains the many ways in which memory fails us from simple forgetting to false or corrupted memories. We learn how being knowledgeable improves our memory, but also how it can lead us into error.

The next chapter advances the same theme by looking at amnesia. While amnesia is one of Hollywood’s favorite plot devices, the subject is generally poorly understood because of the simplified and myth-filled nature of the entertainment form of the affliction. Here you’ll learn what one isn’t seeing in the soap operas.

Chapter 6 is entitled the “The Seven Ages of Man” and it looks at memory over the lifespan, with particular attention to the ends of the spectrum. On one end, why do most of us remember nothing from our first few years—and what we do remember is often quiet suspect (false memories from hearing stories about one’s infancy?) At the other end of the spectrum, we are all well aware of how memory degrades with age—particularly those of us buying and reading books on memory. However, one learns that it’s a great oversimplification. While our episodic (event) memory degrades, some elements of memory are quite robust to aging.

The last chapter discusses what does (and to a small degree, what doesn’t) work with respect to improving one’s memory. As it’s a short chapter in a short book, this should be taken as an outline of the subject. If this is one’s main purpose for seeking out a book on memory, one may want to keep looking.

At this point, I’ve read and reviewed many books in the AVSI series, and I found this one to be typical. It’s not among the most engaging of the titles in the series, but it gets the central concepts across in a way that is readable and soundly organized. Because there’s a lot of definitional and conceptual material to cover, there’s not a lot of room for the narrative approach, which isn’t to say that there aren’t brief descriptions of key cases here and there.

I’d recommend this book for someone wanting an overview of the subject of memory.

View all my reviews

My Vipassana 10-Day Experience: No Solidified Gross Sensations, No Gain

woman-pointing-at-herself6

It’s 4:45 in the morning and I’ve been sitting on my cushion at the Dhamma Setu Vipassana Meditation Center in Chennai, India for a quarter-hour. It’s day one, and I’m observing my breath as it comes in and out through my nostrils—at least for seconds to minutes at a time before I have to coral my mind back from some random tangent. This breath exercise (ānāpāna-sati), I will soon learn, is a preparatory exercise used to reign in the mind enough so that actual Vipassana meditation can be introduced on the middle of the fourth day. In eleven days, I’ll be in the closing session of the course.

 

There are several approaches to Vipassana meditation taught throughout the balance of the course, but the gist is the same for all of them. One rotates one’s awareness throughout the body systematically observing sensations. As one does this, one works toward equanimity, a calm and quiet state of mind in which one neither covets pleasurable sensations nor shuns unpleasant sensations. The idea is to train the deepest level of the mind to not habitually lunge one toward pleasure or away from displeasure.  (FYI: displeasure = pain.  At least for a novice, such as myself, there is a fair amount of pain involved in sitting still for such long periods. It’s generally referred to a solidified gross sensation to differentiate it from the uniform and subtle sensations that one may feel in the parts of the body that aren’t in agony. I joke about it here, but there’s good reason to train oneself to not think in terms of pain, and the negative connotation the word evokes.)

 

At that course’s beginning, I knew a little about Vipassana from research, including reading the book “Equanimous Mind,” one man’s account of his experience in the course. For example, I knew that most people who quit, leave either on day two or day six. At the time, I didn’t know why, but would learn soon enough. It’s nothing about those two days, but rather the days that precede them. Day 1 seems to last forever, and it’s easy enough to discern why it might give students trouble. When one gets through day 1, an optimist says “yeah, I can do this because I’m through the first day” but a pessimist says, “I just barely made it, I can’t do this.” Day 5 is when the strong commitment (adhiţţhāna) is added, which means that one has three one hour sessions during which one is to commit to not changing one’s posture for the whole session. No opening eyes, but—more challengingly—no unfolding /refolding one’s legs.  This commitment to not changing posture steps up the difficulty of the course to another level.

 

It should be noted that one can opt to sit in a chair. However, that introduces an entirely new challenge—drowsiness. During the long sessions, when I’d get up to walk the lymphatic fluid out of my legs, there were usually two people in a straight-spined meditative position and six to eight who looked to be sound asleep.  (Drowsiness was one reason that I didn’t sit in a chair. I’m prone to get sleepy enough during meditation, especially in a complete absence of caffeine. The other reason was that I’ve not found chairs to be more comfortable for long-sits of meditation. Once your bony parts start pressing into the chair, one begins to wish one was cross-legged on a cushion. One can make the chair more comfortable by placing padding wherever it’s uncomfortable, but eventually one has a virtual La-Z-boy and the drowsiness factor becomes all the more problematic.)

 

With respect to these strong commitment (adhiţţhāna) sessions, I didn’t make it the full hour without moving on the fifth day–or any day until day 10, in fact. However, I don’t count this as a failure, because I did give it my all. I say that based on the endorphin-induced euphoria, simple hallucinations, and a proprioceptive form of Alice-in-Wonderland Syndrome that I experienced from toughing it out past mere discomfort. I’ll get to what that all means, but for now suffice it to say these happenings were symptomatic of sitting still through the period in which the pain came, grew, and then started to numb out.

 

In fact, these trippy experiences may, sadly, have been one reason why it never occurred to me to want to leave around day six. While I tried not to get caught up in them, these experiences were fascinating. I could see why day 2 presents a challenge to so many, but day 6 was a hoot, relatively speaking. The second most challenging day for me was day 8, because I’d reached a plateau but I didn’t yet feel myself in the homestretch. But by day 8, who’s going to leave? You’ve gutted it out that long, and are almost done. For those concerned about whether they can make it to the end, I can honestly say that I never seriously considered quitting. It’s not that hard to get through the 10 days, as long as one isn’t too addicted to comfort and communication.  That said, I wouldn’t offer a wholesale recommendation of the course as many do, but rather recommend it on a case-by-case basis. If you’ve done no meditation whatsoever, this is the meditative equivalent of going from couch-sitting to training for an ultra-marathon overnight. If you think you can’t get through nine days of silence–without no phones or books, maybe you can’t, and you should probably reevaluate your life.

 

I mentioned some of the unusual experiences that I witnessed during the course, and I’ll get into that a bit more. I should preface this by saying that one shouldn’t get caught up in these trippy happenings for reasons I’ll elaborate upon below, but they may happen so it’s worth being ready for them. Here’s a list of the unusual events I experienced:

 

-Extreme relaxation / lethargy: a little off topic, but between sessions on day 1, I noticed that I couldn’t be bothered to shoo away a fly that kept buzzing around my head with random touch downs. I don’t know how long I walked with the fly buzzing over me before it struck me that this was unusual. This was before Vipassana proper had been introduced, so it didn’t yet seem apropos.

 

-Olfactory hallucination / vivid scents: on day 2 I witnessed a distinct smell from my elementary school days (i.e. a mix of cleaning solution and milk cartons?) that theoretically could have originated at the Dhamma Setu, but which was quite probably an olfactory hallucination. It was short-lived and I never smelt it again. I did later experience an intense smell of flowers inside the meditation hall. This may well have been an actual scent as there were many blooming flowers there. These vivid scents were also short-lived.

 

-Endorphin-Induced Euphoria: on days 4 and 5, I experienced this as an almost intoxicated feeling. [Endorphins are the body’s indigenous pain-killers.] As drunks find unfunny things funny, so did I—including the pain in my legs and back. I wondered if anyone would be distracted by my occasional giggle-fits, but I think they were much more subdued than I suspected from my vantage point. Just like I’ve thought I was talking in my sleep in the past, only to be told that it sounded more like faint and indistinct whimpering. On day 6, I experienced a more sophisticated (not drunk-like) form of euphoria that expressed itself as a feeling of “oneness.” I’ve read about feelings of oneness being attributed to a form of transient hypo-frontality—i.e. a shutting down of the parts of the prefrontal cortex (PFC) that track the self / other distinction. There may have been more happening than endorphins (and other neurotransmitters) involved in that happening.

 

-Lifting sensation: This was the single most awe-inspiring experience that I was party to. For those unfamiliar with seated meditation, one of one’s chief enemies in long meditation sessions is a proclivity to slump. Slumping translates into agonizing back pain and labored breathing. So whenever one catches oneself slumping, one has to straighten one’s back. [If you wonder why a meditator would pretzel up his or her legs in full lotus (padmasana), the alignment of one’s legs helps one maintain a straight spine.] At any rate, on day 6 I experienced the feeling that I was being lifted up straight and it became effortless to maintain a straight back for the rest of that session—as if an outside force were doing the work. This lifting sensation wasn’t like being lifted by a person, but rather like the action of a “tractor beam” from the world of sci-fi. While I have some inkling of the causes of much of what I experienced based on the science of the human body, explanation of this “lift” is harder to come by. I did read an account in Oliver Sacks’ “Hallucinations” by a woman who suffered from migraine-induced hallucinations and Alice-in-Wonderland Syndrome that was a spot-on description of what I experienced as well.

 

-“Visual” [closed-eye] simple hallucinations: I didn’t experience anything even close to the what people usually think of as a hallucination—that is, there was nothing that could be confused with reality. I wouldn’t have even known to call these images hallucinations if I hadn’t been reading the aforementioned Oliver Sacks’ book. Mine were quite close to what are described as hypnogogic (falling asleep) hallucinations in the Sacks’ book. This makes sense. While I wasn’t drowsy at the time, my brain was probably in a pretty similar state of relaxation. Mostly, these were moving shapes that formed and dissipated in a field of black-fringed purple.  On day 7, there were more complete visuals—mostly of partial faces, usually with mouths wide open. I took this as my subconscious mind’s comment on the noble silence. (On the noble silence: from about 6pm on day 0 [orientation afternoon] until the morning of day 10, one isn’t allowed to talk or in any way interact with / acknowledge anyone except to direct questions to the teacher or staff. Whether one has questions or not, one will speak at least a few words to the teacher every day or two when he / she reviews one’s progress. For some, this may be the single biggest challenge of the course, but I’m a hardcore introvert and could do ten days of silence standing on my head.)

 

-Tactile Alice-in-Wonderland Syndrome: Alice in Wonderland Syndrome usually refers to a visual form of hallucination in which things appear a great deal taller, smaller, closer, or farther than they actually are. What I experienced was a great deal less whacky and traumatic than that. With eyes closed, I felt a distortion of the size and shape of my arms. Sometimes my arms felt like they were six-foot long from deltoid to fingertips, and sometimes the same points seemed to lie a foot and a half apart. Needless to say, those are both distortions of the actual length of my arms.

 

-Inexplicable Beatles’ Music: On day 8 my mind bombarded me with music from the Beatles for a little while. In particular I heard “Sgt Pepper’s Lonely Hearts Club Band”, “Lucy in the Sky with Diamonds”, and “All You Need is Love,” or parts thereof, in high fidelity. Now, while this is fine music, it’s not music that I’ve listened to recently nor have I listened to that album a great deal. When I was growing up, there was a copy of “Sgt Pepper’s…” at home, but I’ve only periodically heard these songs on the radio since. The experience was monotonous because only the parts that I knew the words to (i.e. the choruses) replayed on a loop, but the music and voices were crystal clear as if I were listening to the album.  Given the lack of personal relevance, I can only imagine that my subconscious thought this is the kind of music a person meditating would like to hear.

 

As I said, by about day 8 I’d hit a plateau. The aforementioned odd experiences were petering out, particularly when I did as I was supposed to do and gently returned my mind to the task at hand. Yet, the practice wasn’t getting any easier or smoother. I still had the same dead spots—areas that I could observe for extended periods without even the subtlest of sensations—and I still had growing pain zones in my back and legs—i.e. starting from isolated pains, the pain would become increasingly diffuse and of ill-defined boundaries—but often no less painful.

 

Now I’ll explain my comment about not allowing oneself to become captivated by the trippy experiences. If one seeks after these experiences, not only is one missing out on the value of the practice, one is actually moving in the wrong direction by coveting an experience while impulsive craving is what one is training oneself away from through Vipassana meditation. Beyond this, seeking out such experiences is likely to be frustrating because they are products of the subconscious mind and physiological processes that are beyond conscious control. They happen when they happen, on your body’s schedule. (Note: Some people think of these as spiritual phenomena. I don’t, but—for those who do—they still won’t happen on your schedule. Ostensibly, they’ll happen on some deity’s—presumably rather tight–schedule. And—divine as they may be—they are still a distraction from the objective of the practice—and that’s not my opinion, but according to the teachers of the tradition, starting with Gautama Buddha and through to S.N. Goenka.)

 

So when one experiences such phenomena, one should do the same as one always does in meditation, quietly and non-judgementally return one’s mind to the object of awareness—in this case, systematically witnessing the sensations on one’s body. I won’t say that this isn’t a challenge. It is, because your mind is presenting you with something fascinating and new, and you’re asking it to return to a task that has become rather mundane over hours and days of practice. It should be noted, I would broadly categorize the phenomena that I experienced into two slots, one of which is things the brain does to cope with a lack of external stimulation. (The other being, things the body does to cope with unrelenting pain.) So it takes some discipline, but one should remind oneself—as one is frequently reminded during the discourses—that you are there to give the Vipassana approach a fair trial, and as fascinating as these sideshows are they are a distraction from the practice.

 

That said, these things will happen and their unusual nature may make them points of concern or confusion, and so I’ll discuss them a bit more. I have a theory about the cause of the euphoric experiences, but it requires a little clarification and background. What makes Vipassana challenging for a new practitioner—at least for me— is that in systematically rotating one’s awareness to observe sensations, one has to ignore areas that are screaming with pain while carefully running one’s attention through areas that seem completely devoid of sensation. This requires quieting the mind and especially not feeding the anxiety about one’s pain and discomfort—hence, developing equanimity (steadiness of mind.) Sitting still for an hour at a time, lymphatic fluid piles up in your lower extremities (no pump in the lymphatic system but the one of movement), over time blood circulation may be inhibited, and this lack of circulation has ramifications for the cells not being adequately nourished. So your body notices this fluid build-up (a relatively minor concern, easily rectifiable, and which will take a while to be a serious problem for most people) and sends you some pain sensations to spur you to get up and move about. When you don’t get up and walk, it turns up the discomfort disproportionate to what’s happening with your body. You still ignore it. Eventually, your body starts to think maybe a boulder fell on your legs and you’re in shock (the conscious and unconscious minds don’t talk as much as you might think, and—even if they do—let’s face it, at least the conscious mind is a big, fat liar.) It’s at this point that your body starts to emit some feel-good chemicals. (I refer to “endorphin-induced euphoria,” but it’s more extensive than natural painkillers. In reading up on the subject, I noted references to serotonin and even melatonin (yes, the skin color chemical) in addition to beta-endorphins. I wouldn’t be surprised if there was some dopamine—a reward / feel good chemical—in the mix as well. Hence, the euphoria.

 

I don’t think it’s necessary to get into the hallucinations and other effects that the mind creates in order to cope with the lack of sensory input. This is a well-studied area, and there’s been a lot written on how the mind hates the dark and the quiet over extended periods. I would recommend the aforementioned book by Oliver Sacks on hallucinations as a case in point.

 

Saving the most crucial question for last, was it worth it? In his discourses, S.N. Goenka offers three criteria by which one might evaluate whether Vipassana is worth practicing. While all three are sound criteria, I’ll focus on just one of these, which is really the bottom-line, and that’s whether it makes an improvement in one’s life. That is, does one start to be less prone to impulsively react to craving and aversion and become more equanimous of mind?

 

On this, I’ll have to say that the jury is still out. Many come out of the 10-day course calling it life-changing. I’d say that it was beneficial because I learned a meditative technique that has a sound internal logic (even if one doesn’t believe every aspect of the mechanism by which it is said to work by Buddhists—which I don’t), an established track record of benefit for many, and the feel that it’s benefiting one. However, I’m still evaluating the approach. I’ve been doing Vipassana meditation twice a day with morning and evening affirmations. Let’s face it, 10-days isn’t a long time to overhaul one’s deeply ingrained modes of operation—even sitting in meditation for 10 hours a day. I’m optimistic, and the practice sure doesn’t hurt—except for those solidified gross sensations, they hurt.

 

BOOK REVIEW: Consciousness by Susan Blackmore

Consciousness: A Very Short IntroductionConsciousness: A Very Short Introduction by Susan Blackmore
My rating: 4 of 5 stars

Amazon page

 

Consciousness remains one of the least understood phenomena of our world. It’s also one of the most intriguing subjects, and fascination with it has spurred debate both between science and religion and within science. While science has been moving toward the belief that consciousness is rooted in the brain, there remain many important questions to be answered. Of course, historically, it wasn’t at all common to think of consciousness as arising from the action of a material object (e.g. the human brain), it was beyond humanity’s intellectual capacity to comprehend how something as grand as consciousness could arise from a 1.2kg (<3lb) organ. Consciousness was intertwined with ideas of “the soul”—a non-material self-ness.

So it is that Blackmore takes on a shadowy subject in which questions are as likely to lead to more questions as they are answers. She lays out the arguments between scholars of science and philosophy as to what exactly consciousness is, how it operates, and how important it is or isn’t.

The book consists of eight chapters. The first chapter attempts to define consciousness and discusses the degree to which there is a lack of consensus on the subject. In doing so, it outlines why consciousness is such an elusive subject.

Chapter two describes the attempt to find correlates of consciousness in the brain, and it describes some of the case of brain damage that support the notion that consciousness is a product of the brain. Many beliefs of duality (i.e. the idea that body and mind are separate) have been in decline because of cases in which brain damage is specifically linked to changes in consciousness. Consider life-long love being uprooted by a scalpel.

Chapter three deals with a number of topics related to time and space, such as whether consciousness lags behind reality. That sounds ridiculous. However, remember that we experience the world from inside the frame of reference of consciousness.

Chapter four examines a number of illusions to which our conscious minds are systematically subject. We have a number of blind spots, many of which result from the fact that a great deal of what the brain does, it does without letting the conscious mind in on events.

In the fifth chapter, the author presents the link between consciousness and perception of self. It has long been taken for granted by most of the world that there is some soul that exists beyond the body, and it’s in this chapter that the author reflects upon whether this is an illusion or not.

Chapter six covers a topic that is integrally linked to consciousness and the idea of self, and that is free will. Free will is another notion that humanity historically took for granted that is coming under fire in the face of our increasing understanding of the brain. Current scientific evidence suggests that free will as we perceive it (i.e. thinking things through consciously and then making a decision at a conscious level) is an illusion.

Chapter seven is about the many altered states of consciousness, including: dreaming, drug-induced effects, meditation, and some of the widely reported experiences that seem to involve separation of consciousness from body (e.g. out-of-body and near-death experiences.)

Chapter eight ponders the evolutionary advantage offered by consciousness (especially if a major part of what we think we use our conscious minds for is an illusion.) One thing is clear; evolution doesn’t hand out vast and complex advances in capability if they don’t serve to make one more likely to survive to procreate. However, could consciousness—majestic as it may seem—be a mere side-effect of a big brain developed to facilitate survival in a world in which we weren’t the strongest, fastest, or most athletic creatures by a long shot?

The book uses a wide variety of black-and-white graphics including cartoons, technical diagrams, and photographs. These graphics help to communicate important ideas and are more likely to do so with levity than technical complexity. The book is readable, considering the challenging topic.

I’d recommend this book for those interested in an overview of the state of understanding and debate about what consciousness is.

View all my reviews

Out for Meditation

IMG_2445

 

I’m doing the Vipassana Meditation 10-day course starting tomorrow. I’ll be out of contact (and thus not posting) until September 11, 2016.

For those unfamiliar with the course: no phones, no books, no notebooks, no interaction with anyone but the staff and teacher, and no exercise.  If it’s not meditation, it’s probably not allowed.

Wish me luck.

BOOK REVIEW: The Tibetan Yogas of Dream and Sleep by Tenzin Wangyal Rinpoche

The Tibetan Yogas Of Dream And SleepThe Tibetan Yogas Of Dream And Sleep by Tenzin Wangyal
My rating: 5 of 5 stars

Amazon page

I stumbled upon this book in a used bookstore, and didn’t know what to expect–but was intrigued. It’s a book on the Tibetan Bön approach to dream yoga and sleep yoga, written by a Bön lama (monk.) Dream yoga is a term used in Buddhism and other Eastern traditions to refer to what is called lucid dreaming in Western scientific circles. My review will focus on the more than 3/4ths of the book that deals in dream yoga (lucid dreaming.) The 40-ish pages that deal with sleep yoga are outside my wheelhouse. The author suggests that that part is for initiates who are familiar with certain background concepts. I’m not an initiate, and—in fact—I have no idea whether there is any merit to sleep yoga practice. Lucid dreaming is a well-studied and documented phenomena, but, as far as I know, what the author calls sleep yoga remains unstudied. All I can say is that the part on dream yoga is readily comprehensible, despite much of it being couched in spiritual terms, but a lot of the section on sleep yoga is arcane and ethereal.

As it happens, I was pleasantly surprised with the portion of the book about dream yoga. Having read a number of books dealing with the subject recently, I wasn’t sure whether I would learn anything that was both new and useful. But I was exposed to ideas that were new, useful, and mind-blowing. There were a few ideas for helping one to achieve lucid dreaming—mostly through practices carried out during the day—that I’d not seen in other works, at least not put in such clear terms. Also, while there is a lot of reference to the Bön and Buddhist spiritual traditions, this didn’t result in the explanations being needlessly complicated or arcane. There is a lot of information that one doesn’t need if one is a secular practitioner, but many readers will find it interesting, even if it’s not necessary to advance their practice.

The book is organized into six parts: 1.) The Nature of Dream, 2.) Kinds and Uses of Dreams, 3.) The Practice of Dream Yoga, 4.) Sleep, 5.) The Practice of Sleep Yoga, and 6.) Elaborations. The last part has information pertinent to both dream yoga and sleep yoga.

There are some graphics in the book including photos, line drawings, and tables. Most of these aren’t essential, but some make it easier to imagine what the author is describing (e.g. when he discusses sleeping positions.) The book has a glossary and bibliography. The former is useful, and the latter doesn’t hurt (but it’s only one page and offers only a handful of citations.) The glossary is mostly of foreign terms, but includes English terms specific to the religious traditions discussed. It offers both Tibetan and Sanskrit variants of the word if they exist, which is a nice feature. There is also an appendix which summarizes the crucial practices elaborated upon in the book.

I’d recommend this book for those interested in developing a lucid dreaming practice. I will say that it may not be the best first book to read on the subject, unless you are a practitioner of Bön or intend to be. (For that, I would recommend Charlie Morley’s “Lucid Dreaming: A Beginner’s Guide…” which I recently reviewed.) However, this book makes an excellent follow-up once one has read a book that is couched in simpler terms (i.e. not specific to a certain spiritual tradition) and which reports on the science. I found that the book gave me a number of new ideas, and—in fact—offered some insightful ideas.

View all my reviews

BOOK REVIEW: Lucid Dreaming by Charlie Morley

Lucid Dreaming: A Beginner's Guide to Becoming Conscious in Your DreamsLucid Dreaming: A Beginner’s Guide to Becoming Conscious in Your Dreams by Charlie Morley
My rating: 4 of 5 stars

Amazon page

 

Lucid dreams are those in which the dreamer is aware he or she is in the dream and can interact with the dreamscape. Most people experience lucid dreaming only as a happy accident. Some people dream lucidly in their youth, but never as an adult. Some people become aware they’re dreaming under specific conditions, e.g. on a certain medication. However, lucid dreaming has been practiced in some traditions for centuries, most notably by Tibetan Buddhists (though chapters 5 & 6 demonstrate that it’s much broader than just the Tibetans.) Furthermore, having confirmed lucidity in dreams in sleep laboratories, scientists have moved to advance our understanding of the phenomena using the scientific method and by taking advantage of the latest brain imaging technologies.

Charlie Morley has written a couple books on the subject as well as giving a well-received TEDx Talk on the subject. Morley studied under a Tibetan lama as well as studying up on the science of the phenomenon.

There are eight chapters in this book. The first three chapters constitute part one, the basics. This part introduces one to the subject of lucid dreaming, considers some of the reasons why people get into it, and explains how to recognize one is in a dream. The remaining five chapters form the second part, which is about going deeper with one’s practice. The second part explores what one may see in a dream, and how one can use the experience of being lucid for self-improvement. Lucid dreaming is one of the few access points to one’s subconscious mind. The second part also charts the development of lucid dreaming in both the West and the East, as well as offering suggestions about how nutrition may help in one’s practice.

The book is written as an instructional manual, and offers “toolboxes” of techniques to help advance one’s lucid dream practice by teaching one to remember one’s dreams, understand the phases of sleep, recognize one is in a dream, achieve lucidity, and know what to do once one is lucid in a dream. These are handy summaries of the lessons taught in greater detail in the text. All of the chapters but 5 and 8 have one of these toolbox summaries. There are also frequent text boxes of strange but true facts about lucid dreaming, tips from experienced lucid dreamers, case studies, and stories used to make relevant points about lucid dreaming. There are no graphics, but they aren’t missed.

I found this book to be useful and interesting. It’s readable and logically organized. I’d recommend it for anyone interested in developing a lucid dreaming practice—particularly if one is starting from scratch. There are a number of books on the subject, but many will be too ethereal to be of value to a new practitioner, but Morley writes in an approachable fashion and organizes the book to help one get into a practice as efficiently as possible.

View all my reviews

BOOK REVIEW: Kokoro Yoga by Mark Divine

Kokoro Yoga: Maximize Your Human Potential and Develop the Spirit of a Warrior--the SEALfit WayKokoro Yoga: Maximize Your Human Potential and Develop the Spirit of a Warrior–the SEALfit Way by Mark Divine
My rating: 4 of 5 stars

Amazon page

Like many yoga practitioners, I’m never sure whether to be dismayed, amused, or pleased by the explosion of new styles of yoga. It’s nothing new. Yoga has been branching out since its early days. But today’s flavors tend toward the frivolous, usually involve shoving yoga together with something else generally likable, and said two things are in some cases largely inconsistent. There’s marijuana yoga, dog yoga, karaoke yoga, and tantrum yoga. I wouldn’t be surprised if there was a Häagen-Dazs Yoga. Hell, if I was a bit less lazy and more unscrupulous I’d have made a mint from my patented SELFIE YOGA (™ -pending), which involves modifying impressive looking poses so that an individual can take their own pics for FaceBook. (You’re welcome; to whomever the driven sleeze-bag is that turns that idea into a thing.)

I, therefore, tend to approach books like Mark Divine’s “Kokoro Yoga” with a measure of skepticism. That said, I found that this book offered a respectable vision of yoga that might even succeed in bringing a new demographic into the fold. Divine is a former Navy SEAL who developed a fitness empire called SEALFIT, a system that combines fitness ideas from the famous Special Operations unit with ideas from civilian sports and exercise science, such as high intensity interval training (HIIT.)

Incidentally, “kokoro” is the Japanese word for heart / mind (heart and mind were inexorably entwined for Japanese in the era in which the term came into being.) Divine mentions that “Warrior Yoga” would have been his first choice, but that was already taken. The author appeals to warriors with this approach to yoga. He does this in several ways. Firstly, and encouragingly, he doesn’t neglect the mind, but rather puts it front and center by emphasizing the need for mental strength and clarity. My biggest problem with the plethora of new yogas is that they usually forget that it’s ultimately about calming the mind, and instead of providing an environment conducive to looking inward, they embrace or create all sorts of distractions (loud pop music, mirrors everywhere, nudity, animals, ice cream, circus clowns, etc.) Divine doesn’t just make a new fitness fad, he argues for the need for all of the eight limbs of yoga—not neglecting yama and niyama—and emphasizes how yoga served as a calming and clarifying tool for him and not just as a means to be more bendy.

Second, he adds components to balance out the dimensions of fitness. If you are a yogi / yogini, and you want a yoga body; yoga is all you need. However, if you are a martial artist, cop, or soldier, you also need strength, speed (then, by definition, power), and cardiovascular endurance, as well as those aspects yoga offers (e.g. breath control, flexibility, core strength, posture, and mental clarity.) Again, I’m often dismayed by attempts to round out yoga with functional strength building and cardiovascular endurance. I understand the desire to combine them into one workout. Besides the fact that some people need a more balanced approach to fitness, not everybody has time to do multiple workouts multiple times a day. Still, one can’t just ram these components together willy-nilly because if one needs to be in a space to observe one’s breath while being still and one is coming out of having done 100 burpees, it’s probably not going to work so well. I haven’t yet done any of the sequences from the book, but it looks like this shouldn’t a problem, at least not for individuals who are moderately fit. I’m less confident about the value of mixing in elements of chi gong and “cardio kickboxing,” which is suggested by the system. It’s certainly not that I’m opposed to either chi gong or functional martial arts training, but there’s a lot of important detail in those activities and this format risks some horrible half-assery. (Yes, sometimes you get chocolate in peanut butter and get a Reese’s cup, but more often you get sausage in the pudding. Two things being great, by no means ensures they will be great together.)

Finally, Divine puts his approach in the language of soldiers, using concepts like “strategy” and “tactics” and eschewing Sanskrit terminology. The book begins with an anecdote about going into a combat zone as a Reserve officer, which describes his use of yoga to help him get his mind in the right place. He also talks extensively about his practice of martial arts.

There are eight chapters and three appendices to the book. They proceed from the aforementioned story through a look at the general approach, looking at the eight limbs of yoga, before getting into the details. The penultimate chapter sums up research on some of the benefits of yoga, and the last chapter offers advice about how to set up one’s sadhana (personal practice) with the Kokoro Yoga approach in mind. The appendices offer information about functional conditioning exercises, combat conditioning, and module building.

Overall, I think this is a useful book that provides some interesting thoughts on yoga. You may or may not find that it’s the approach for you, but it’s worth checking out. The photos are well-done—though some readers may wish there were more related to the functional conditioning exercises (but he’s got other books for that, it seems.)

I’d recommend this book for those interested in how a yoga practice might be integrated with other aspects of fitness without losing track of the core yogic objectives.

View all my reviews

Even imaginary monsters get bigger if you feed them

Public domain image sourced from Wikipedia

Public domain image of Epictetus, sourced from Wikipedia

There’s a story about Epictetus infuriating a member of the Roman gentry by asking, “Are you free?”

 

(Background for those not into Greek and Roman philosophy. Epictetus was a Roman slave who gained his freedom to become one of the preeminent teachers of stoicism. Stoicism is a philosophy that tells us that it’s worthless to get tied up in emotional knots over what will, won’t, or has happened in life. For Stoics, there are two kinds of events. Those one can do something about and those that one can’t. If an event is of the former variety, one should put all of one’s energy into doing what one can to achieve a preferable (and virtuous) outcome. If an event is of the latter variety, it’s still a waste of energy to get caught up in emotional turbulence. Take what comes and accept the fact that you had no ability to make events happen otherwise.)

 

To the man insulted by Epictetus, his freedom was self-evident. He owned land. He could cast a vote. He gave orders to slaves and laborers, and not the other way around. What more could one offer as proof of one’s freedom? Of course, he missed Epictetus’s point. The question wasn’t whether the man was free from external oppressors, but whether he was free from his own fears? Was he locked into behavior because he didn’t have the courage to do otherwise?

 

I recently picked up a book on dream yoga by a Tibetan Lama, Tenzin Wangyal Rinpoche. Lucid dreaming has been one of my goals as of late. I wasn’t expecting to learn anything new about practices to facilitate lucid dreaming because I’ve been reading quite a bit about the science, recently. I just thought that it would be interesting to see how the Tibetan approach to lucid dreaming maps to that of modern-day psychology. Tibetan Buddhists are–after all–the acknowledged masters of dream yoga, and have a long history of it. Furthermore, I’ve been doing research about the science behind “old school” approaches to mind-body development, lately. At any rate, it turns out that there were several new preparatory practices that I picked up and have begun to experiment with, and one of them is relevant to this discussion.

 

This will sound a little new-agey at first, but when you think it out it makes sense. The exercise is to acknowledge the dream-like quality of one’s emotionally charged thoughts during waking life. Consider an example: You’re driving to an important meeting. You hit a couple long red lights. You begin to think about how, if you keep hitting only red lights, you’re going to be late and it’s going to look bad to your boss or client. As you think about this you begin to get anxious.  But there is no more reality in the source of your fear than there is when you see a monster in your dreams. There’s a potentiality, not a reality. Both the inevitability of being late and the monster are projections of your mind, and yet tangible physiological responses are triggered (i.e. heart rate up, digestion interfered with, etc.) It should be noted the anxiety isn’t without purpose. It’s designed to kick you into planning mode, to plan for the worst-case scenario. Cumulatively, one can get caught up in a web of stress that has a negative impact on one’s health and quality of life.  For most people, when they arrive on time, they forget all about their anxiety and their bodily systems will return to the status quo, until the next time (which might be almost immediately.) Some few will obsess about the “close call” and how they should have planned better, going full-tilt into a stress spiral.

 

Mind states have consequences, whether or not they’re based in reality. I’ve always been befuddled by something I read about Ernest Hemingway. He’d won a Nobel Prize for Literature and was universally regarded as one of the masters of American literature, but he committed suicide because he feared he’d never be able to produce works on the level that he’d written as a younger man. There seems to be more to it than that. Many others managed to comfortably rest on their laurels when writing became hard[er]–including writers with much less distinguished careers.  The monster may be imaginary, but if you feed it, it still gets bigger.

 

As you go about your day, try to notice your day-dreams, mental wanderings, and the emotional states they suggest. You might be surprised to find how many of them have little basis in reality. They are waking dreams.