The characteristic lightness which Yengo refers to was experienced by the Taoist Lieh-tzu (c.400 B.C.) to such a degree that he seemed to be riding on the wind. This is how he describes the feeling: “Internal and external were blended into a unity. After that, there was no distinction between eye and ear, ear and nose, nose and mouth: all were the same. My mind was frozen, my body in dissolution, my flesh and bones all melted together. I was wholly unconscious of what my body was resting on, or what was under my feet.
