Melusina, being a water-nixie, is closely connected with Morgana, the ‘sea-born,’ whose classical counterpart is Aphrodite, the ‘foam-born.’ Union with the feminine personification of the unconscious is, as we have seen, a well-nigh eschatological experience
Jung identifies Melusina-as-nixie with Morgana and Aphrodite, framing union with this water-spirit as an eschatological encounter with the feminine unconscious.
, Collected Works Volume 3: The Psychogenesis of Mental Disease, 1907thesis