What feelings did the moonlit night express?

This poem is a five-character poem and a homesick work. The first one explains the background and renders the atmosphere. Broken Pedestrian explains the background, which shows that wars are frequent: The First Call of Wild Goose in Autumn at the Border writes the desolate scene of the frontier fortress from the visual and auditory perspectives, and renders a depressing atmosphere for Moonlit Night. Turn to explain the season and point out the main idea. "He knows that the dew tonight will be frost" explains the season, that is, the "White Dew Festival", indicating that the weather is getting colder and colder, and the water vapor on the ground is condensing, which makes people feel bleak. "The moonlight at home is how bright!" Integrate into the poet's subjective imagination, point out the main idea, and highlight the poet's deep homesickness. These two sentences use the technique of "empathy", Bai Rushuang dew, but tonight is even paler; As always, the bright moon is the brightest in my hometown, which is entirely the poet's subjective imagination in the description of natural scenery and the natural expression of the poet's feelings of missing his relatives in his hometown. The neck joint is a link between the preceding and the following, with natural transition. The poet's yearning for his younger brother naturally leads to his homesickness, and his melancholy is mixed with anxiety and anxiety about where you will go. Connecting the preceding with the following, the transition is natural. The tail couplet reveals dissatisfaction and deepens the theme. The poet further expressed his inner anxiety and melancholy, and at the same time implicitly expressed the pain and disaster brought to the people by the An Shi Rebellion, which deepened the theme. Throughout the poem, in the years of war-torn, the poet felt sad and affectionate towards his loved ones. Dissatisfaction with reality and sympathy for the people are implied between the lines, which makes the common theme of homesickness touching and depressing, and the poem is neat, affectionate and intriguing, thus becoming a model of five-character poetry.