Brian Muraresku, author of "The Immortality Key," dives into the role of psychedelics in ancient Greek spirituality and their potential ties to early Christianity. Joining him is Professor Carl Ruck, an expert in mythology and the use of psychoactive plants in rituals. They discuss the Eleusinian Mysteries, the historical links between psychedelics and religious experiences, and the evolving perception of these substances in psychiatry today. The conversation also touches on the intriguing connections between mushrooms, consciousness, and our cultural heritage.