The first four sentences can be said to be a vast frontier fortress picture containing three elements: Guan, Shan and Yue. In general literary works, we often see descriptions such as "the moon rises from the East China Sea" or "the moon rises from the East Mountain", and Tianshan seems to be the place where the moon sets in the west of China. Why do you say "the bright moon rises from the mountain in the sky"? It turns out that this is from the perspective of recruiting people. Looking back at the east, you can see the bright moon rising from Tianshan Mountain. Although Tianshan Mountain is not close to the sea, it is opposite to the sea of clouds. The poet combines the vast sea of clouds and the majestic Tianshan Mountains, which seems to be more common only after crossing the sea, and it is fresh and spectacular. Such a realm may be unsustainable in the face of ordinary poets with weak talents, but Li Bai is full of pen power. Next, "and the wind comes from thousands of miles, hitting Yumenguan battlements" is broader than the previous two sentences. Yang Qixian in the Song Dynasty seems to be afraid of problems with Wan Li, saying, "Tianshan Mountain is not too far from Yumenguan, but those who talk about Wan Li are like the moon from Tianshan Mountain, not from Tianshan Mountain." It seems safe to explain "Wan Li" with the imaginary distance from the bright moon to Yumenguan, but Li Bai is talking about the length of "Changfeng", not the distance from the bright moon to the earth. In fact, these two sentences are still from the perspective of the garrison. Standing in the moonlight on the northwest border, the foot soldiers looked at their homeland, feeling that the wind was mighty, as if they had crossed the Central Plains of Wan Li and Yumen Pass. If we relate it with the poem "Autumn wind blows my heart to the jade gate forever" in Li Bai's Midnight Wu Ge, the meaning of this poem will be more clear. In this way, combined with the above description, it is characterized by Changfeng, Yue Ming, Tianshan and Yumenguan, forming the frontier fortress map of Wan Li. On the surface, it seems that only natural scenery is written here, but as long as you put yourself in the other's shoes, it is easy to feel the feeling of missing the countryside.
"China's army marched along Deng Bai Road, while the Tatar army peeped in the blue waters of the bay. Because there is no famous battle in history that sent all the soldiers back. " This is a battle scene superimposed on the first four vast frontier natural scenes. Next, point out the soldiers. Liu Bang, Emperor Gaozu of the Han Dynasty, led troops to levy the Xiongnu and was besieged by the Xiongnu for seven days in Deng Bai (now Datong West). The Green Bay area is a place where Tang Jun and Tubo fought for years. The endless wars of past dynasties made it almost impossible for soldiers who had never gone to war to see anyone alive in their hometown. These four sentences play a connecting role in the structure, describing the transformation object from frontier fortress to war and from war to garrison.
The soldiers turned and looked at the border, thinking of home with longing eyes. And those rooms above tonight, tossing and turning, sighing, can't rest. "The soldiers looked at the scene of the border, thinking of their hometown, and their faces were full of sadness. They speculate that in this vast moonlit night, the wife in the tall building will never stop sighing. The word "looking at the frontier" seems to be casually written in Li Bai's works, but it closely links Wan Li's frontier fortress and battle scenes with "guarding the guests". What you see is so vast and distant. The soldiers' thinking and imagination of women in tall buildings, as well as their sighs, are particularly profound in such a broad background.
Looking at the endless ethnic conflicts in the ancient frontier, the poet revealed the great sacrifices brought by the war and the pain brought to countless expropriated people and their families, but did not simply condemn or praise the war. The poet seems to be thinking about the heavy price paid by generations for this! Faced with such contradictions, poets, recruiters and even readers can easily arouse a desire. This desire is not directly expressed in the poem, but the idea that "a soldier is a sharp weapon, but a saint has to use it" (The Battle of the South) is easy for readers to produce when reading this work.