"Delusion and Dream" is a collection of essays by the Austrian neurologist and founder of psychoanalysis, Sigmund Freud. These essays, also known as "Traum und Wahn," were written by Wilhelm Jensen, a Danish author, and were later analyzed and interpreted by Freud. The collection explores the relationship between delusions and dreams in the context of psychopathology and the human psyche. Freud examines Jensen's work, discussing the connections between dreams, delusions, and the unconscious mind. He delves into the symbolic and psychological meanings of these phenomena, considering how they can reveal hidden desires, fears, and conflicts. Freud's analysis of Jensen's essays provides valuable insights into the nature of dreams, delusions, and the workings of the unconscious mind. It is a significant contribution to the field of psychoanalysis and the understanding of human psychology. In summary, "Delusion and Dream" is a collection of essays by Wilhelm Jensen, later analyzed and interpreted by Sigmund Freud. The essays explore the connections between dreams and delusions, shedding light on the complexities of the human psyche and the unconscious mind. Freud's analysis offers a deeper understanding of these phenomena and their significance in the realm of psychopathology and psychology.