THE 5 LEVELS OF THE PSYCHEDELIC EXPERIENCE
The Psychedelic Experience: A Manual Based on The Tibetan Book of the Dead (commonly referred to as The Psychedelic Experience) is an instruction manual intended for use during sessions involving psychedelic drugs.
This version of Tibetan Book of the Dead was authored by Timothy Leary, Ralph Metzner and Richard Alpert, all of whom took part in experiments investigating the therapeutic and religious possibilities of drugs such as mescaline, psilocybin and LSD. The book is dedicated to Aldous Huxley and includes a short introductory citation from Huxley's book The Doors of Perception.
Part of this text was used by the Beatles in the song Tomorrow Never Knows.
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