What's the story in the poem Fortress?

Quotations: Wang Changling should have visited the Western Regions in his early years, which is an old topic in Yuefu. Wang Changling lived in the heyday of the Tang Dynasty. During this period, the Tang Dynasty won many foreign wars, and the confidence of the whole nation was extremely strong. Therefore, the works of frontier fortress poets can reflect an impassioned upward spirit and strong confidence in defeating the enemy. At the same time, frequent border wars also make people feel overwhelmed and long for peace, and "Out of the fortress" reflects people's desire for peace. At the same time, Du Fu's Military Vehicle Shop can be used as a reference. Frontier poems are the product of the times, and also the works that can best reflect the rise and fall of national luck. Poetry critics often praise "the voice of the prosperous Tang Dynasty", and frontier poems are a basic aspect of the content of "the voice of the prosperous Tang Dynasty". The rise of frontier poems is closely related to the expansion of the poet's life scope. From frontier fortress poems, we can see that the poet's vision is broadened, the artistic conception of poetry is expanded, and the content of poetry is more colorful. Have the desire to make contributions: "Better be a centurion than a scholar" (Yang Jiong); There is a passion for serving the country: "I swear to be famous for serving the country, and I am ashamed to say it" (Zhang said). Many poets have lived in military camps outside the Great Wall for many years, such as Gao Shi, Cen Can and Li Yi. The content of their frontier poems involves almost every aspect of frontier life: it is about the homesickness of soldiers going to war and the hatred of their wives at home; It shows the hardships of life beyond the Great Wall and the cruelty of years of fighting. It reflects the emperor's dissatisfaction with the opening of the border and resentment against the general's greed; There is a saying that people who have lived in the frontier for a long time miss their relatives in their hometown; There are amazing scenery different from the Central Plains here ... When we read these poems, we should be able to distinguish the subtle differences in the ideological content of each poem. Taking Cen Can's frontier poems as an example, it is characterized by the heroic spirit of being generous to serve the country and the optimistic spirit of not being afraid of hardship, which describes the richness and variety of frontier life more. He also wrote some frontier homesick poems, such as "On Meeting the Messenger of the Capital", which was read by later generations: "My hometown has a long way to go east, but I don't want to cry. I will meet you immediately, without paper and pen, and I will bring your news to report peace. " Although things are small, they are affectionate. At the same time, we should also recognize the contradictions in frontier fortress poems: the contradiction between generous obedience and long-term homesickness; The contradiction between patriotic passion and hard life; Hate the contradiction between mediocrity and professionalism and so on. Wang Changling (? ~ about 756), a poet in the Tang Dynasty. Not much to say. Jingzhao Chang 'an (now Xi 'an, Shaanxi) was born. In the fifteenth year of Kaiyuan (727), he was a scholar and served as secretary of provincial studies. He once made friends with Meng Haoran, and "they shared the same brush and inkstone for many years" (Meng Haoran's "Sending Wang Changling Lingnan"). In the 22nd year of Kaiyuan, Wang Changling was awarded the county commandant of Surabaya (now northeast of Gongxian County, Henan Province). In the twenty-seventh year of Kaiyuan, he was relegated to Lingnan for something. When passing Xiangyang, Meng Haoran sent him a poem ("Send Wang Changling to Lingnan"). Passing through Yueyang, Hunan, I sent Li Bai's poem "Ba Ling Send Li Twelve". The following year, he returned to Chang 'an from the North and South Mountains and was appointed as the county magistrate of Jiangning (now Nanjing, Jiangsu) in the winter of the same year. Known as King Jiangning. After a few years in Jiangning, he was slandered to destroy the country and was demoted to the county magistrate of Longbiao (now Qianyang, Hunan). Li Baiyou's poem "I heard that Wang Changling moved to Longbiao kiln to the left and sent this message" has deep sympathy and nostalgia. An Shi arose, and Wang Changling was demoted to Jiangning and killed by Qiu Xiao, the secretariat of Haozhou. There are many versions of Wang Changling's native place, except Taiyuan, Jiangning and Jingzhao. Wang Changling was a famous poet in Tang Dynasty. At that time, he was very famous and was called "the poet king Jiangning". Because the name of the poem was written earlier, I made many friends with the famous poets at that time, and the friendship was very deep. In addition to the above-mentioned friends with Li Bai and Meng Haoran, I also made friends with Gao Shi, Yun,,, Wang Zhihuan, Wang Wei, Chu Guangxi and Chang Jian. He was demoted several times, living in remote Lingnan and Xiangxi, traveling to and from the economically developed Central Plains and Southeast China, to the northwest frontier, and even to the area of Broken Leaves (now Kyrgyzstan). Because of his rich life experience and extensive friends, it is of great benefit to his poetry creation. Wang Changling is good at seven-character quatrains, and he is called the seven-line master by later generations. For example, the poem "Out of the Great Wall" wrote: "The moon passed through Qin, and the Long March people did not return. But make Longcheng fly, and don't teach Huma to cross Yinshan. " Lamenting the incompetence, broad artistic conception, deep feelings and boldness of vision of the garrison commander is indeed a treasure in ancient poetry and is hailed as a masterpiece of the Tang Dynasty. Another example is Joining the Army, which is also a well-known masterpiece. Funeral march and Song of Picking Lotus reflect the unfortunate experiences of ladies-in-waiting, which are delicate and vivid, fresh and beautiful, with a sad style and superior artistic conception, and express the feelings of missing women and the innocence of girls. Farewell work "Lotus Inn and Xin Jian Parting" is also a masterpiece through the ages. Shen Deqian's "Three Hundred Tang Poems" said: "The Dragon Label is a quatrain, full of affection and bitterness, with vague meaning, unpredictable and endless aftertaste."