The Balance of Nature

The body is a delicate balance of Yin and Yang. Yin represents water, quiet, substance and night, whilst Yang represents fire, noise, function and day. 

The two are polar opposites and because of this one must be present to allow the other to exist; for instance, how can you experience joy if you do not understand misery?

The state of the body is determined by the balance of Yin and Yang within it. Each of the organs of the body has an element of Yin and Yang, although one organ may be more Yang in its nature, whilst the other is more Yin.