The whole poem means: the night is about to pass and the sky is getting brighter. I walked out of the gate to welcome the cool air and feel the beauty of the world. Among them, "heavy yat sen villa" means that the night is particularly cool and sunny.
This poem expresses the author's feelings about beautiful human feelings and praises the natural scenery at night. It can also be extended to people in ordinary life, through careful taste and feelings, find beautiful and cherished things in life.