Mercury Square Pluto A Complete Guide eAstroHelpSquare heart Aphrodite to Hades. Square filled with affection. Venus associated with God of the Underworld. Heart plus Hades creating a box. Aphrodite intersected by God of the Underworld. The bond between love and Venus, without Pluto. The square as a symbol of passionate love, associated with Venus and Pluto. Two entities combined in a box: love and Aphrodite - Hades.