Square heart Venus - Pluto. Cube full of passion. Venus connected to God of the Underworld. plus Hades making up a box. Aphrodite intersecting with God of the Underworld. The bond between love and Venus, minus Pluto. The square as a symbol of passionate love, associated with Goddess of Love and God of the Underworld. Two forces merged in a cube: passion with Aphrodite - Hades.