What does it mean that the sun and the moon are unknown at dawn and evil harms emptiness?

Comment on this paragraph and explain what will happen if heaven does not hide virtue.

1,: Ming, exposed. The word "Ming" here is the antonym of "Zang" in the previous sentence. It means that if God doesn't hide virtue.

2. then: just.

3, the sun and the moon are unknown: especially if the sky does not hide virtue, in other words, if God is angry and angry, then the sun and the moon will lose their light, that is, the sun and the moon will lose their light.

4, evil harmful gas: disease name. Empty orifices, that is, acupoint orifices. Refers to diseases caused by the invasion of pathogenic factors into the mouth, nose, ears, eyes and other organs.