Yin-Yang and the Supreme Ultimate
Dao is the generator and controller of all movement; its generative function is applied in a Non-Interfering ( 無為 Wuwei ) fashion of non-action without inaction. The universe is always evolving under the control of Dao, and everything in the world is endlessly changing. What is the internal mechanism of these changes? In order to answer this question, we muct discuss some important concepts including Vital Breath ( 氣 Qi ), Infinity ( 無極 Wuji ), the Supreme Ultimate ( 太極 Taiji ), Yin-Yang ( 陰陽 Yinyang ), the Five Agents ( 五行 Wuxing ), and so on.