oh, Michael,,,,about the three pure ones...
I am still working on it! Three did come out of nothing in this sequence or way.. I don't know the order, or detail of event. The yin energy and yang energy emerged (two), and their integration, the tai chi (as in tai chi symbol), was regarded as the 'three', from one source I encountered. How this three and the three pure ones relate, I don't know. I am working on it! They both connect to truth, and are at the same level of subtle energy emergence relative to the Wuchi. It's good not to have all the answers. I may ask Master Lin about this sometime..., but, for now, I enjoy the questions...