Arguing that we ought to look to psychedelic aesthetics of the 1960s in relation to current crises in liberal democracy, this book emphasizes the intersection of European thought and the psychedelic. The first half of the book focuses on philosophical influences of Herbert Marcuse and Antonin Artaud, while the second half shifts toward literary and theoretical influences of Aldous Huxley on psychedelic aesthetics. Framed within an emergent discourse of political theology, it suggests that taking a postsecular approach to psychedelic aesthetics helps us understand deeper connections between aesthetics and politics.