Philosophy of the Unconscious of the scales, and his 'World-process' in the other. There are some who believe they weigh equally; for in each scale there is an evil word—and a good joke." Hartmann's work has been seen as preparing the way for Freud's later theory of the unconscious. Freud consulted "Philosophy of the Unconscious" while writing "The Interpretation of Dreams" (1899), in which he called Hartmann the firmest opponent of the theory that dreams are wish fulfillments. The philosopher Hans Vaihinger was influenced by "Philosophy of the Unconscious", relating in his "The Philosophy of 'As if'" (1911) how it led him to Schopenhauer.
Psychoanalytic dream interpretation still exist. For example, the Boston Psychoanalytic Society and Institute Inc. still uses many forms of psychoanalysis, including the interpretation of dreams. For some supports, though, it is easy to become confused in all of the ideas of psychoanalysis and therefore have a hard time defending. This is part of what led to the decline of psychoanalysis and psychoanalytic dream interpretation as mentioned earlier. G. William Domhoff and David Foulkes consider the idea that free association gives access to the latent content of the dream to have been invalidated by experimental psychology, concluding that the method is just arbitrary. Psychoanalytic