Box heart Aphrodite - Pluto. Square with a heart. Goddess of Love connected to God of the Underworld. Heart plus Pluto making up a square. Venus crossing paths with Pluto. The bond between heart and Goddess of Love, minus Hades. The power of love symbolized in a square, associated with Venus and God of the Underworld. Two entities merged in a square: plus Aphrodite - Pluto.