"I suspect the real breakthroughs in our understanding of consciousness are going to come from an entirely different direction. That direction, controversially, has to do with psychedelics--which, as many of the contributors to The Divine Spark argue, offer spectacular potential for the investigation of the 'hard problem' of consciousness." --from the introduction by Graham Hancock Psychedelics: Medicinal? Vital in interspecies communication or communion with the sacred? Are you reaching enlightenment or damaging your brain? In this anthology, edited by bestselling author Graham Hancock, 22 writers discuss psychedelics and their myriad connections to consciousness.