Sacred Chao

The Sacred Chao is a symbol used by Discordians to illustrate the interrelatedness of order and disorder.
Discordianism is a modern religion centered on the idea that chaos is all that there is, and that disorder and order, the former considered a concept distinct from chaos, are both illusions that are imposed on chaos.
It resembles a Yin-Yang symbol, but according to the Principia Discordia.
The choice of the pentagon as a symbol of the Aneristic Principle is partly related to The Pentagon in Virginia.

Yin And Yang Symbol

According to ancient Chinese philosophy, the two fundamental principles, one negative, dark, passive, cold, wet, and feminine (yin) and the other (yang) positive, bright, active, dry, hot and masculine.
The interactions and balance of these forces in people and nature influence their behavior and fate.
The balance of yin and yang in the individual, nature, and the cosmos is symbolized by a circle separated by an "S" shape, one half of the circle dark and the other light.
Used in the Western world to express any dualistic, reciprocal control system in which one influence tends to promote things that the opposing influence tends to inhibit.