An exploration of the chemical, biological, psychological, and experiential dimensions of ayahuasca

- Details the scientific discovery of ayahuasca's sophisticated psychoactive delivery system in the brain and body and its potential applications in medicine and psychology

- Includes contributions from Dennis J. McKenna, Ph.D., J. C. Callaway, Ph.D., and Charles S. Grob, M.D., on the ethnopharmacology, psychology, phytochemistry, and neuropharmacology of ayahuasca

- Provides 24 firsthand accounts of ayahuasca experiences and resulting life changes

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A classic guide to expanding perception and consciousness development. In this highly acclaimed classic, psychedelic elder Ralph Metzner presents a guide to six ancient systems, once known only to the initiated few, to expand awareness and free your consciousness from exterior limitations and cultural conditioning. Metzner begins with the I Ching, revered by the Chinese as the oldest and wisest book in the world. He explains how it reveals change as the evolutionary constant and offers a hands-on method of divination and guidance. He explores the Hindu and Buddhist Tantras of medieval...