View trailer for STANISLAV GROF: RESEARCHER, AUTHOR, TEACHER, AND VISIONARY Click here (and scroll down) to order full-length video
"Stanislav Grof is one of the most important pioneers in the scientific understanding of consciousness.
He and his wife, Christina, have contributed both to its intellectual and experiential understanding through their work with Holotropic Breathwork." -Deepak Chopra
Stan Grof and Michael Harner in dialogue, presented by the Foundation of Shamanic Studies, video below