Female sexuality is one of the issues which made at once most debate within psychoanalytical community (the "Black continent", Sigmund Freud said). However, we know that Freud, in some texts, let out fragments of an alternative theory: it offers a woman endowed with a vaginal aperture, and whose passive sexual aim is to be penetrated. Where does this desire to receive passively the other into oneself come from? Genital penetration in its passive form is the ultimate instinctual aim of female psycho-sexual development, the one who enables reproduction. However, it seems likely that a psychic representation of it is not the product of a spontaneous generation during the puberty (as Freud sometimes suggested), but that roots in pre-genital period: it relies without fail on the reality of girl or boy's body, which carries a containing-excitable feature. Accordingly, it seems possible to isolate a specific instinctual component, which aims at the passive purpose to be penetrated: a vaginal instinctual component. Influence's phenomena seem paradigmatic of a psychic figuration of penetration. We chose to consider two modalities of it: delusion of control is a resolution, in the psychotic experience area, of the ambivalence towards vaginal desire; under hypnosis, modified state of consciousness favors surrendering to hypnotist's suggestions, in so far as it neutralizes, by diverse processes, subject's resistances, which recover from a refusal of the vaginal.
