A conversation with Michael Pollan, author, journalist, and professor of journalism at the University of California-Berkeley Graduate School of Journalism, and Corby Kummer, Editor in Chief, IDEAS: The Magazine of the Aspen Institute. Pollan and Kummer discuss the latest developments in trials using psychedelic therapy to treat depression, anxiety, obsession, and trauma, and what this work is revealing about the mind, the self, and spiritual experience.