The Doors of Perception
by Aldous Huxley
"A person who goes back to the wall through a door will never be the same as the person who goes out." Aldous Huxley first took mescaline in 1953 and continued his experiments with hallucinogenic drugs until 1963, when he requested LSD on his deathbed. Huxley explores the effects of the mescaline experience and explains how the drug allowed him to discover "a sacred vision of reality." It also discusses the spiritual and moral implications of the experience and shows how negative emotions can turn a person's perceptual nirvana into a "schizophrenic hell."