The circle, a representation of unity, an endless cycle, a continuous line with no start or end point. Ouroboros, the snake eating it's own tail, the suit of Disks in the Tarot representing earth, a depiction of consciousness, the internal and external. Rings bind, Pi fails to resolve itself to infinity. Matter cannot be created or destroyed, it simply changes state and position. The world turns, loops and repeats. Loops repeat. Repeat.