Literally, this term means pivot of Dao. It first appeared in Zhuangzi written by the ancient Chinese philosopher Zhuangzi (369?-286 BC). It is pointed out in Zhuangzi that people tend to look at others from their own perspectives or standards, but such different views or standards often give rise to confrontation and disagreement. Therefore, Zhuangzi maintained that people should transcend their own views and go beyond their own standards when viewing other people or things, thus avoiding or resolving conflicts or disputes. By taking this key approach to others and things, one can gain a true understanding of Dao.

This object has its reason for being the way it is, while the other one also has its own rationale for being the way it is. Is there truly a difference between the two? Or is there truly no difference between them? A non-confrontational approach to the two is key to understanding Dao. Zhuangzi