Afterward, subjects rated the service for a variety of mystical qualities: sacredness, ineffability, distortion of time and space, and a sense of oneness with the divine. “[Psilocybin] subjects ranked their experiences13 much higher in mystical qualities than members of the control group did,” explains John Horgan in his book Rational Mysticism. “Six months later, the psilocybin group reported persistent beneficial effects on their
