According to Chinese folklore, at a time before the beginning, a motionless cosmic egg existed. From the faraway deep, there was chaos in the heavens. Through turbulence, the egg spun faster and faster, gathering momentum until it split into light and dark. The halves flowed in curved malleability. A seed from the dark side flew into the light, and a seed from the light entered the dark. When the egg stabilised, Yin and Yang were born, a dynamic, dual force that created our planet, forming day and night and separating all things into positive & negative. The seeds ensured that every Yin contained some Yang, and each Yang- a touch of Yin. 

The Yin/Yang symbol is called a “Taijitu” (pronounced taiji tu). It is the diagram of all matter, all life, which derives itself from the harmonious interaction of opposites. 

Together, Yin/Yang represent all contrasts, such as cause and effect, stillness and movement, war and peace, as well as the attraction and repulsion energies of a magnet. Yin and Yang are the dualism that exists in everything, from the protons & electrons that together form an atom, to the creative & receptive ability of our sun to develop atomic fuel with which to stoke its own furnace. Yin/Yang represent the balancing forces of the universe that see-saw eternally. The marriage of Yin and Yang flows into all beings, male and female. 

Yin-Yang principles are the very heart of Feng Shui. 

Learn about the Dragon's breath-"Chi".