The Celtic love knot is inspired by lemniscates, the sacred symbol of the infinite. It is also a variation of the heart shape, which symbolizes universal love. This is a knot which has energy and complexity, and a sense of harmony as well. If we look at the two strands as separate individuals, it shows two lovers intersecting, gathering power from each other, which is then taken out independently into the world, before coming back and meeting again. The ring could be understood as the power of infinite love joining.