" The transitive shift from observer to participant, from gaze to encounter, requires both active engagement and a passive willingness to allow the phenomenon to reveal itself in its own terms. This visionary leap opens a dimension of experience, of ontological possibility, that is simultaneously a kind of abyss. In finding a “Thou” where before there was an “it”—as Martin Buber would describe it—the psychonaut suddenly faces all manner of risks: terror, madness, delusion, or what Terence ironically called “death by astonishment.” But to not take the chance, for some anyway, falls short of the mark. "

― , High Weirdness: Drugs, Esoterica, and Visionary Experiences in the Seventies