In 1953, in the presence of an investigator, Aldous Huxley took four-tenths of a gramme of mescalin, sat down and waited to see what would happen. When he opened his eyes everything, from the flowers in a vase to the creases in his trousers, was transformed. In this book, he gives an account of his experience, and his vision for psychedelics.

Acclaimed as one of the most exciting books in the history of American letters, this modern epic became an instant bestseller upon publication in 1974, transforming a generation and continuing to inspire millions.