It means to persuade people to "sharpen their edge, eliminate their disputes and confuse the world" when disputes and contradictions arise due to selfish desires. In this way, without selfish desires, there will naturally be no disputes with people.
Harmony with dust: it means not showing your edge and treating the world in a peaceful way. There is also a metaphor for drifting with the tide.
Harmony and sameness: mixing. Harmony with light: mixing all kinds of brilliance; Chen Tong: Same as the world. The original intention is the embodiment of Taoist thought of governing by doing nothing. The source of the fourth and fifty-sixth chapters of the Tao Te Ching: "Defeat its sharpness, solve its disputes, and make peace with its light, with its dust; It's called Xuan Tong. "
Extended data:
The original text of Chapter 56 of Tao Te Ching: Those who know speak, and those who speak know. Plug the switch and close the door; Frustrate their spirit and resolve their disputes; Its light, its dust; It means Xuan Tong. So, you can't get close and you can't get it. If you can't get it, you can't get it, and it hurts; If you can't get it, it's expensive. If you can't get it, it's cheap, so it's expensive for the world.
Explain that wise people do not talk big, and those who talk big have no wisdom; Block the opening of knowledge dissemination and close the doors and windows of knowledge transmission; Cut off the edge and get rid of troubles; Contain your own glory and confuse yourself and the world; This is the so-called deep and subtle Xuan Tong. So it is impossible to be close to him, and it is impossible to be alienated from him; It is impossible for him to gain or lose; It is impossible to make him noble or humble, so he is valued by the whole world.
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