“Cleansing the Doors of Perception: The Religious Significance of Entheogenic Plants and Chemicals” by Huston Smith

"Cleansing the Doors of Perception: The Religious Significance of Entheogenic Plants and Chemicals" by Huston Smith

"An examination of the link between psychedelic drugs and religious experiences throughout history summarizes the research of the twentieth century and shares the philosophies of such figures as Sigmund Freud and Saul Bellow."