Endless Knot

The endless knot or eternal knot (Sanskrit: śrīvatsa; Tibetan དཔལ་བེའུ། dpal be'u; Mongolian Улзии) is a symbolic knot and one of the Eight Auspicious Symbols. It is in important symbol in both Jainism and Buddhism. It is an important cultural marker in places significantly influenced by Tibetan Buddhism such as Tibet, Mongolia, Tuva, Kalmykia, and Buryatia. It is also sometimes found in Chinese art and used in Chinese knots.
In Jainism it is one of the eight auspicious items, an asthamangala, however found only in the Svetambara sect. It is often found marking the chests of the 24 Saints, the tirthankaras. It is more commonly referred to as the Shrivatsa.