After years of training I continue to enjoy manual MOS PE!
The tutor then explains to the emperor why the man must await the Four Attainments: "If the jade stalk is not angry, his harmonious essence has not arrived. If it is angry but not large, his muscle essence has not arrived. If it is large but not rigid, his bone essence has not arrived. If it is rigid but not hot, his spirit essence has not arrived." - The Yin-Yang Butterfly