What is the main content of the excerpt poem?

This is a compliment to the natural landscape and a reflection on the universe.

This poem depicts the rising of the moon, illuminating the surroundings, the fading of darkness and the appearance of the Milky Way, and expresses the poet's love and praise for the natural landscape. Through these scenes, the poet reflects his thinking about the universe and shows his awe of the mystery and vastness of the universe.