Stan Grof describes a specific subgroup of non-ordinary states of consciousness that he refers to as holotropic.
03:02 min
CLEAR ALL
Charles T. Tart, PhD, is emeritus professor of psychology at the University of California, Davis, as well as the Institute of Transpersonal Psychology. Here he discusses a number of altered states including marijuana intoxication, dreaming, hypnosis, and out-of-body experiences.