Micropsychoanalaysis, psychoanalysis of Freudian derivation, is an investigation method of the psyche, which inscribes the person and his or her unconscious within a universal dimension that Fanti modeled with the name: "Energetic Organization of Vacuum". It results both in a redefinition of some classic notions, and in the elaboration of new specific concepts.

In particular, based on the practice of long sessions, Fanti offers a radically new perspective about the aggression, here defined as a normal activity, at the same level of the sleep-dream, wherefrom it depends, and the sexuality, representing its most physiological outlet. In this view, Fanti outlines the psycho-sexual development of the human being, taking into account his heredity and underlining the primordial role of the intra-uterine initiatic phase.