Roger Walsh

Psychedelics have been a part—often a central and sacred part—of most societies throughout history, and for half a century psychedelics have rumbled through the Western world, seeding a subculture, titillating the media, fascinating youth, terrifying parents, enraging politicians, and intriguing researchers.

This book, including contributions from many of the best thinkers and doers in the field, explores transpersonal psychology, which moves beyond conventional ego, behavioral, and even humanistic psychology to include the study of consciousness in its myriad forms, including meditation, ecstatic states, and shamanistic awareness.