Much of Sage Spirit: Salvia divinorum and the Entheogenic Experience is comprised of journal-style descriptions and subsequent analyses of the author’s Salvia divinorum journeys, wherein he encounters a realm of other consciousnesses, beings, and intentions. A central element to his ritual is the use of rhythmic, patterned sound. The book concludes with thoughtful guidelines on how to conduct a salvia ceremony for groups or for the individual. Ball has done some much-needed shamanic pioneering here, and his ideas on psycho-acoustics bear further investigation.

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