The Tai Chi Diagram appears as a circle, which seems simple but is a marvelous shape. The ancient Chinese conceived of the sky and earth as round and square, respectively, calling them collectively as “round sky and square earth.” The Tai Chi Diagram has a round periphery, which is round on a plan but appears as a globe in the three-dimensional space. In ancient China, the term “circle” has rich meanings, with a sense of perfection and consummation.

In the West, the Tai Chi Diagram is translated as the “diagram of the universe”, whose round shape depicting the universe, namely, what the ancient Chinese called the heaven and earth. When we analyze a circle with modern geometry, we can find it greater than any other shape in area, volume, space and capacity. Without fixed start and end points and with the center omnipresent, a circle never has an end.