Why do we dream? Antonio Zadra, professor of psychology at the University of Montreal, and psychiatrist Robert Stickgold of Harvard Medical School provide a new answer to this question. In their book, the duo present a dream theory according to which nocturnal fantasy stories serve to anchor current experiences and knowledge in long-term memory. Precisely for this process, the brain is put into a state of highest creativity, in which even the most nonsensical ideas are allowed. In short, this is a book to remember.