he most well-known Taoist symbol is the Yin-Yang symbol: a circle divided into two swirling sections, one black and the other white, with a smaller circle of the opposite color nestled within each half. The Yin-Yang symbol can also be found embedded within a more complex Taoist image - called the Taiji Tu, which is a visual representation of all of Taoist cosmology. Also within the Taiji Tu we find a symbol of the interactions among the Five Elements - which produce the Ten-Thousand Things, i.e. all the "things" of our world. The Ba Gua are trigrams that represent various combinations of Yin and Yang.