What does this poem express the author's feelings?

It expresses the author's thoughts and feelings of missing his loved ones, and expresses the loneliness and sadness that the poet cannot reunite with his loved ones. Moonlit Night is a five-character poem written by Du Fu, a great poet in the Tang Dynasty. In Fuzhou, far away, she is looking at the moonlight, looking at it alone from the window of her room. For our boys and girls, poor little baby, too young to know where the capital is. Her cloudy hair is sweet with mist, and her jade-white shoulders are cold in the moonlight. When can we lie on the screen again and look at the bright light and stop crying? . Tonight, you are the only one watching the full moon alone in the boudoir. Pity your youngest son in other places. I don't know why you miss Chang 'an. The fragrant mist moistens your temples, and the clear light of the bright moon makes your arms cold. When can I sit side by side under the thin curtains, and the moonlight shines on you and me to dry my tears? Creation background of the expansion: In the spring of Tianbao 15th year (756), An Lushan attacked Tongguan from Luoyang. In May, Du Fu moved from Fengxian to Baishui (now Baishui County, Shaanxi Province) to his uncle. In June, Chang 'an fell, Xuanzong fled to Shu, the rebels entered Baishui, and Du Fu fled to Qiang village in Zhangzhou with his family. In July, Su Zong ascended the throne in Lingwu (now Lingwu County, Ningxia). Du Fu learned that he had arrived in Lingwu from Zhangzhou alone, only to be captured by Anshi rebels on the way and taken back to Chang 'an. In August, the author was forbidden to write this poem in Chang 'an.