Where does Ying and Yang come from?
https://quietwoodslife.blogspot.com/2011/08/where-does-ying-and-yang-come-from.html
Excerpt from Tutorial "Ying Yang" By Joey Yap
Chinese sages state that the Tao or Tai Ji comes from the Great Void (Nothingness). The great void is known as the WuJi. The WuJi is the netherworld of all creation and the pure land of all wisdom and life in the Universe.
