What is the Tao?
The Tao is the central principle of Taoism and is highly influential throughout Chinese thought. It is the ultimate reality and the eternal principle. It has no characteristics, but contains within it all potentiality and all opposites. Thus yin and yang, yu and wu (being and not-being), and all other dual realities exist within the Tao.
For more about the Tao, see Taoist Beliefs.