"The exterior and the interior are always in harmony, and the movement is contradictory" should be a work in the later period of Kangxi. It expresses the way of keeping in good health. Its meaning is the same as the "law of Yin and Yang". . . . Therefore, form can be in harmony with God. "The Yellow Emperor's Internal Classic Su Wen is similar.

Where 1, meaning, yin and yang; 2, pay: this meaning, mutual. This is the same as the intersection of Zhou Zheng and evil in Zuo Zhuan. You can also take "positive" as the antonym of "evil". 3. Positive: unbiased. Means balance. 4. Exercise: refers to the form and spirit of the body. Fu Wei: Nothing. Meaning harmony.

Then, the general idea of this sentence is: the human body, yin and yang have always maintained a balance, and there will naturally be no problem in form and spirit.

The above is only a literal explanation of this sentence. The environment and mentality at the time of writing are still unknown, although the way of keeping in good health is hidden in politics.

Above, when no? Please forgive me.