The Devil's Book of Culture: History, Mushrooms, and Caves in Southern MexicoSince the 1950s, the Sierra Mazateca of Oaxaca, Mexico, has drawn a strange assortment of visitors and pilgrims schoolteachers and government workers, North American and European spelunkers exploring the region's vast cave system, and counterculturalists from hippies (John Lennon and other celebrities supposedly among them) to New Age seekers, all chasing a firsthand experience of transcendence and otherness through the ingestion of psychedelic