In this article, a five-step-procedure designed to obtain "systemic" variations from a given story is described. Six work variations from the myth of Electra by different AA. have been examined (Aeschylus, Sophocles, Euripides, von Hoffmansthal, O’Neill and Yourcenar), as examples of variations of the same story. Both in individual and in family therapy, the therapists promote only a limited set of variations from the narrative offered by the patients: a first set of restrictions are ethical in their nature; some additional constraints pertain the need for a shared epistemological background between the therapists and the patients; finally, different principles distinguish "systemic", "psychodynamic psychotherapies" and "organists" narratives. The need to integrate, in therapeutic practice, such principles with the models of a psychological and psycho- biological models credited by Scientific Community, is established.
Keywords: Narrative Psychotherapies; Systemic Therapy; Training; Mith; Electra