Drawing on his work in psychoanalysis, Stijn Vanheule seeks to answer this question, which carries significant implications for mental health as a whole. With a combination of theory from Freud to Lacan, present-day research, and compelling examples from his own patients and well-known figures such as director David Lynch and artist Yayoi Kusama, he explores psychosis in an engaging way that can benefit those suffering from it as well as the people who care for and interact with them.