Senjutsu to Ninjutsu by Doshi Shigetsu
My rating: 4 of 5 stars

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This essay presents thoughts about the practices of what Taoists would call “Immortals.” (The work was apparently created as a speech or lecture.) The translation used in the book is “mountain ascetics,” which might lead readers to believe that it is talking about Shugenja or Yamabushi. I don’t know a great deal about the Japanese language or those systems, but the character used — 仙 (Xiān, in Chinese) — is almost always translated as Immortal in the Chinese language. Shugendo is a syncretic tradition of Esoteric Buddhism, Shinto, Taoism, and folk religion, and it certainly has some overlap (mountain setting, Taoist influence, harsh training practices, etc.) but I don’t know that the two systems would be viewed as equivalent. (Though maybe they were considered so at the time and place of publication.) The author does try to clarify who it is he is talking about, largely by distinguishing them from Celestial Maidens (天人) and Tengu (天狗, crow-goblin-swordsmen.)

At any rate, the primary objective of the lecture / essay is to counter the tendency to be dismissive of these systems. The piece is dated 1901, and so there was an increasing proclivity to dismiss the supernormal as mere superstition. The author argues that practitioners who develop unwavering self-confidence through the practice of intense / death-defying activities (e.g. fasting) may be capable of things that would be unfathomable by ordinary people, leading ordinary lives.

The “ninjutsu” bit of the title results from the proposition of a linkage of the methods and approaches between Japan’s famous caste of warrior-spies, i.e. the ninja, and the ascetics / immortals discussed throughout most of the book.

This is an interesting read, particularly so because of its timing (after the era of Samurai and Ninja, but before modernity so advanced that the supernatural was entirely relegated to a societal fringe.)

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