Cleansing the Doors of Perception: The Religious Significance of Entheogenic Plants and Chemicals by Huston Smith (2000-05-04)

This wise, witty, wondrous book, by the world's foremost religious scholar, will surely provoke a long-overdue reconsideration of the potential of mind-expanding compounds. Like the work of Aldous Huxley, Cleansing the Doors of Perception is destined to become a spiritual classic. --John Horgan