This paper attempts to introduce a concept very rarely, if at all, mentioned in psychotherapy: "the feminine". It proposes that psychotherapy would benefit from better understanding masculine and feminine principles, particularly the latter one, in view of the neglect they have suffered over the years. Finally, it also suggests that psychotherapists could collude with an over-masculine culture if not careful. Awareness comes primarily from a personal encounter with the feminine. Jungian and Post-Jungian psychoanalysts add some light to this issue.