The Triquetra: The Triple Moon is used in Pagan and Wiccan teachings. It represents the threefold nature of the Goddess: As maiden, mother and crone. The Triquetra symbolizes the three faces of the Goddess, balance of the Mind, Body and Spirit. The circle signifies the ever-turning cycle of life, death and rebirth. #wicca
The triquetra, also known as a "trinity knot," is believed to represent the three promises of a relationship such as to love, honour, and protect, and can be found as a design element on Claddaghs and other wedding or engagement rings.