"Whatever one believes about psychedelics, the book reminds us that the mind is the greatest mystery in the universe, that this mystery is always here, right in front of us, and that we usually devote far less time and energy than we should to exploring it." — Yuval Noah Harari
"Pollan possesses such undeniable authority and innate eloquence that you cannot help but take him absolutely seriously. A deeply empathetic and convincing book." — The Guardian
"Pollan's deeply documented chronicle will enlighten those who mainly regard psychedelics as an easy catchphrase for the Woodstock generation, and will encourage those who increasingly see them as a possible antidote to our often stubbornly limited thinking. […] Captivating and informative." — The Boston Globe
"Pollan makes you turn the pages with clear vision and confidence." — The New York Times
"Journalist Michael Pollan had explored psychoactive plants in the book The Botany of Desire (2001). In this bold and thrilling study, he goes even deeper. […] Pollan even goes so far as to consciously disturb his own consciousness, experimenting on himself, in the spirit of psychologist William James, who more than a century ago was already pondering the wildest boundaries of consciousness." — Nature