James Fadiman's classic and a must-read. Fadiman reviews both the latest and neglected research on the psychotherapeutic value of visionary drug use for increased personal awareness and a wide range of serious medical conditions, including his recent study of the reasons for and outcomes of psychedelic use among hundreds of students and professionals. He reveals new uses for LSD and other psychedelics, including microdosing, extremely low doses for improved cognitive functioning and emotional balance.