“The book’s blend of scholarship, erudition, and imagination makes a compelling argument that human evolution, even the enlargement of our brains, has been due in part to psilocybin mushrooms and their effects on perception, cognition, and imagination. Central to his analysis is that this evolution is continuing to this day and that the future is already visible. His scholarly perspective is persuasive, optimistic and a pleasure to read.”

—James Fadiman, PhD, microdose researcher and author of The Psychedelic Explorer’s Guide and (with Jordan Gruber) A Symphony of Selves

“Within our current social conversation about psychedelics and their therapeutic use, Jahan Khamsehzadeh offers a comprehensive overview of sacred mushrooms and psilocybin, their history, and their meaningful place in our lives as a species. The Psilocybin Connection reads like a transmission, anchored in the historical, philosophical, and societal facets of sacred mushrooms and psilocybin, while bringing us closer to Jahan’s personal views on life, existence, and the transcendent. His own inner journeys clearly permeate this narrative; and just like the mycelium’s intelligence runs in the heart of Earth herself, the spore prints of Jahan’s broad connectivity of body, mind, spirituality, the collective, and Nature shine through the title of this book.”

—Francoise Bourzat, author of Consciousness Medicine: Indigenous Wisdom, Entheogens, and Expanded States of Consciousness for Healing and Growth and cofounder of the Center for Consciousness Medicine

“The Psilocybin Connection explores how the psychedelic renaissance impacts lives across the planet. Jahan compiles compelling scientific research, provocative theories, and bold visions for the evolutionary role of psychedelics. He guides readers through what this means for us now, how it affects our views of the past, and what amazing possibilities may unfold in our future. He does all this through using integral theory, the most sophisticated and comprehensive set of ideas, frameworks, and practices for making sense of complexity. The integral map helps readers navigate the multifaceted terrain of psychedelics applied to self, culture, and nature. Reading this book will expand your mind without any chemical compounds. And it just might inspire you to engage the territory yourself.”

—Adam B. Leonard, coauthor of Integral Life Practice: A 21st-Century Blueprint for Physical Health, Emotional Balance, Mental Clarity, and Spiritual Awakening

“At the outset, Dr. Khamsehzadeh makes clear his book is the result of an intense two-decade-long journey of integration that was kicked off by his own transformative psychedelic experiences. His story alone inspires. But through his efforts to continue exploring, learning, and integrating, we all may benefit. The Psilocybin Connection is an extensive survey of complex and sometimes controversial ideas about the role psilocybin mushrooms have played throughout human history, with an eye not only on the distant past and our present times but also possible futures. Having been trained in both worlds, Dr. Khamsehzadeh weaves psychedelic Western cultural history with Indigenous wisdom traditions. This book demonstrates a clear integration of passion, scholarship, and a healthy dose of wonder—an elixir for those seeking to connect with the mystery that’s woven into not only our human lives but also the very fabric of the cosmos.”

—Kile Ortigo, PhD, author of Beyond the Narrow Life: A Guide for Psychedelic Integration and Existential Exploration

“Beautifully complex, yet perfectly comprehensible. From cave paintings to singularities wrapped in the holonic nature of the universe, The Psilocybin Connection weaves the profound nature of the conscious universe through the lenses of the anthropological, the social, and the technological. It invites the reader along humanity’s historic journeying with psychedelics from the prehistoric through to the modern day. The perfect story for anyone trying to more deeply understand the role of psychedelics in human civilization, myth, and the future of human evolution—absolutely brilliant!”t story for anyone trying to more deeply understand the role of psychedelics in human civilization, myth, and the future of human evolution—absolutely brilliant!”

—Matt McKibbin, cofounder of the Crypto-Psychedelic Summit and founder of DecentraNet

“This book is the single most comprehensive on the subject of psilocybin mushrooms that I’ve come across in twenty-plus years of exploring the subject. I found answers to questions I didn't even know I had. Regardless of your level of knowledge or experience, Jahan’s book is accessible, inviting, inspiring, and incredibly informative. This will be my go-to recommendation when anyone asks me any question about the history, use, science, or potential of psilocybin mushrooms.”

—Michael Roesslein, MS, FDN-P, holistic health and wellness educator and founder of Inaura

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