Best known for his work on the ethics of eating, Pollan delivers his most personal book yet, one that demanded he drop acid in full view of the reader. Exploring the history and science of psychedelics, he tells of the rise and fall and rise again of our societal interest in these drugs, which are now thought to have many benefits, from helping with addiction to easing the terror of the terminally ill. The book hits its high point when he examines the mysticism and spirituality of the psychedelic experience. What can we learn about ourselves when the part of our mind controlling the ego drops away? What is this older, more primitive part of the brain, which connects us to how a child sees the world? It’s a trip that leads him to wonder about how, ultimately, we can get the most out of our existences as conscious beings in the world.