ABSTRACT
In his 1915 paper Sigmund Freud's "system unconscious" (system Ucs.) has no direct access to consciousness without transformation and it is as if it were naive. Freud's division of unconscious mental life was into three components, a preconscious that only needed to gain attention to become conscious, a repressed unconscious containing unacceptable content, and the system Ucs. Melanie Klein unlike Freud posits that object relations exist from the beginning of life. By doing so she populates the system Ucs. Wilfred Bion (1962b), building on the metapsychology of Freud and Klein, added other layers to these processes. The grid that he designed to help the review of current psychoanalytic clinical material also offers a graphic account of his metapsychology. The vertical axis represents in descending order the ascent from raw physiological data to psychological abstract concepts.
