Spiritual Growth with Entheogens: Psychoactive Sacramentals and Human ... - Google Books

https://books.google.de/books?id=0aVzAwAAQBAJ&dq=entheogen+entheogens

Reveals entheogens as catalysts for spiritual development and direct encounters with the sacred • With contributions by Albert Hofmann, Huston Smith, Stanislav Grof, Charles Tart, Alexander “Sasha” Shulgin, Frances Vaughan, and many others • Includes…