[Inner Traditions] 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 Widely recognized by anthropologists as the most powerful and widespread shamanic hallucinogen, ayahuasca has been used by native Indian and mestizo shamans in Peru, Colombia, and Ecuador for healing and divination for thousands of years. Made from the Amazonian vine Banisteriopsis caapi and the DMT-laden leaf of Psychotria viridis, ayahuasca is regarded as the embodiment of intelligent plant beings wh