Bion maintained that alongside conscious and unconscious states of mind, there is a third psychic category, which he calls the 'inaccessible'. He relates this mental category, which has never been psychically represented or conscious, mainly to intrauterine life and a conjectured type of primitive form of projective identification. The author believe that this vividness conveys the particular violence of their attendant emotions and at the same time bears witness to the genuine oneiric quality of the analyst's reverie. A parallel could be drawn between these analyst's reveries and Freud's (1937) description of überdeutlich or ultra-clear, quasihallucinatory memories, which may occur in patients in response to a construction. Reverie is the place where the patient's partially obstructed capacity to dream and the oneiric space of the analyst overlap - it is where the analysis actually takes place..