In Ancient Chinese taosit philosophy, Taijitu, called yin and yang in the west, is a concept of duality forming a whole, describing how seemi
ngly opposite forces may actually be complementary and interdependent in the natural world, and they may give rise to each other as they interrelate to one another.
They are two halves that together complete wholeness and each one exists due to its opposite.
Yin and yang are also the starting point for change. When something is whole, by definition, it’s unchanging and complete. So when you split something into two halves – yin/yang, it upsets the equilibrium of wholeness. Both halves are chasing after each other as they seek a new balance with each other. Balance is created through even opposite forces.
In Chinese Cosmology, the universe created itself out of a primary chaos of material eneegy and formed objects and life through cycles of Yin and Yang, Yin being the receptive principle and Yang the active one.
The word Yin comes out to mean “shady side” and Yang “sunny side”. These dualities include feminine and masculine, north and south, winter and summer, disorder and order, good and evil, ugliness and beauty, night and day and many more.