Introduction : Hallucinogens revisited -- A conversation with Albert Hofmann / Charles S. Grob -- The role of psychoactive plant medicines / Ralph Metzner -- Psychedelic society / Terence McKenna -- Two classic trips : Jean-Paul Satre and Adelle Davis / Thomas Riedlinger -- The good Friday experiment / Huston Smith -- Chemical and contemplative ecstasy : Similarities and differences / Roger Walsh -- Drugs and Jewish spirituality : That was then, this is now / Lawrence Bush -- Using psychedelics wisely / Myron J. Stolaroff -- Successful outcome of a single LSD treatment in a chronically dysfunctional man / Gary Fisher -- Sitting for sessions : Dharma & DMT research / Rick J. Strassman -- The psychedelic vision at the turn of the millennium : A discussion with Andrew Weil -- Making friends with cancer and ayahuasca / Donald M. Topping -- An ethnobotanist's dream / Glenn H. Shepard -- Shamans and scientists / Jeremy Narby -- Ritual approaches to working with sacred medicine plants : An interview with Ralph Metzner -- Appendix A. The psychology of ayahuasca / Charles S. Grob -- Appendix B. Deconstructing ecstasy : The politics of MDMA research / Charles S. Grob -- Appendix C. Psychiatric research with hallucinogens : What have we learned? / Charles S. Grob.