This essay collection explores the strangest and most profound aspects of the psychedelic experience, including the illusion of self, deep insight, the sublime, encounters with DMT entities, déjà vu, and existential joy. Sam Woolfe draws on research and theories from various disciplines to reflect on how altered states can inform our understanding of consciousness, the self, and reality. With a focus on the philosophy of psychedelics, Woolfe examines these experiences through the lenses of metaphysics, philosophy of mind, epistemology, aesthetics, existentialism, and Buddhism, balancing open-mindedness with critical skepticism.