Christian RC$tsch, Ph.D., is a world-renowned anthropologist and ethnopharmacologist who specializes in the shamanic uses of plants for spiritual as well as medicinal purposes. He studied Mesoamerican languages and cultures and anthropology at the University of Hamburg and spent, altogether, three years of fieldwork among the Lacandone Indians in Chiapas, Mexico, being the only European fluent in their language. He then received a fellowship from the German academic service for foreign research, the Deutsche Akademische Auslandsdienst (DAAD), to realize his doctoral thesis on healing spells an...