What kind of emotion does the ancient poem Wuyigang written by Liu Yuxi express?

this is a nostalgic poem. In the Eastern Jin Dynasty, Zhuque Bridge on Qinhuai River in Nanjing and Wuyi Lane on the south bank were prosperous and prosperous, but now weeds are overgrown and desolate. Feeling the vicissitudes of life, life is changeable. Arouse people's imagination with the old nest of Yanqi, which contains but does not show; Painting the background with "wild flowers" and "sunset oblique" is beautiful but not vulgar. Although the language is extremely shallow, the taste is infinite. Shi Buhua's "Poem on the Servant" commented on three or four sentences of this poem: "If you are a swallow, he will stay. Cover the swallow is still in this hall, and Xie Wang is scattered and has become an ordinary people. If you do this, you will feel infinite, and your pen will be extremely curved. " The first sentence is "Wild grass flowers beside Suzaku Bridge", which spans the Qinhuai River in Nanjing and is the only way from the city center to Wuyi Lane. Bridge and Wuyi Lane on the south bank of the river are not only adjacent in location, but also related in history. In the Eastern Jin Dynasty, Wuyixiang was the inhabited area of the Tujia people in Gaomen, where Wang Dao, the founding father, and Xie An, who commanded the Battle of Feishui, lived. The heavy building decorated with two bronze finches on the old bridge was built by Xie An. Literally, Suzaku Bridge is even opposite to Wuyi Lane. Using Suzaku Bridge to sketch the environment of Wuyi Lane not only conforms to the geographical reality, but also creates the aesthetic feeling of antithesis and evokes relevant historical associations. It is the choice of "killing three birds with one stone". What is striking in the sentence is the overgrown weeds and wild flowers by the bridge. The grass grows and flowers bloom, indicating that it is spring. Press the word "wild" in front of "grass flower", which adds a lonely atmosphere to the scenery. In addition, these weeds and wildflowers are growing along the Suzaku Bridge, which has always been busy, which makes us think that it may contain profound meaning. I remember that the author once used "weeds" as a symbol of decline in the poem "Thousands of households become weeds" ("Taicheng"). Now, in this poem, highlighting "weeds and flowers" in this way shows that the Suzaku Bridge, which used to be busy, has become desolate and desolate today! The second sentence, "The setting sun at the entrance of Wuyi Lane", shows that Wuyi Lane is not only set against the background of the ruined and desolate ancient bridge, but also presented in the afterglow of the setting sun. The word "oblique" in the sentence, corresponding to the word "flower" in the previous sentence, is used as a verb, and they all write the dynamics of the scene. "Sunset", the sunset in the west, and then click the word "oblique" to highlight the bleak scene of sunset. Originally, Wuyi Lane in its heyday should be full of clothes and horses. Now, however, the author uses a touch of oblique light to make Wuyi Lane completely enveloped in a lonely and bleak atmosphere. After the contrast of the environment and the rendering of the atmosphere, it seems that it is time to describe the changes of Wuyi Lane in a positive way and express the author's feelings. However, the author did not use too shallow a way of writing, such as "Who lives in Wuyi Lane, looking back makes people remember Xie Jia" (Sun Yuanyan's "Ode to Wuyi Lane"), "There is nowhere to find Xie Wang House, falling flowers and singing birds in Liling Spring" (anonymous) and so on; Instead, he continued to write a well-known sentence with the help of the description of the scenery: "In the old days, Wang Xie Tang died and flew into the homes of ordinary people." Unexpectedly, he suddenly turned his brush strokes to the flying swallows nesting over Wuyi Lane, so that people could identify where the swallows were flying. Now, ordinary people are living in Wuyi Lane. In order to make readers clearly understand the poet's intention, the author specially points out that these swallows flying into people's homes used to be old swallows perched on the eaves of Wang Xiequan's tall hall. The word "old times" gives the swallow the identity of a historical witness. The word "ordinary" particularly emphasizes how different the residents today are from the past. From this, we can clearly hear the author's infinite feelings about this change. The design of the image of Feiyan seems to come easily, which actually embodies the author's artistic ingenuity and rich imagination. Jin Fuxian's Preface to Yan Fu said: "It is said that Yan's nest is here this year, so she will return next year. It will die, and you can know it by cutting your claws. The consequences are profound. " Of course, in life, even a swallow with a very long life can't be an old swallow who was "in front of Wang Xietang" 4 years ago. However, the author has grasped the characteristics that swallows, as migratory birds, inhabit old nests, which is enough to arouse readers' imagination, imply the prosperity of Wuyi Lane in the past, and play a prominent role in comparing the past with the present. Wuyi Lane focuses on the present situation of Wuyi Lane in artistic expression. Just a subtle hint of its past. The poet's feelings are hidden and hidden, and they are contained in the description of the scenery. Therefore, although its scenery is ordinary and its language is simple, it has an implicit beauty, which makes people read it with endless aftertaste. "Poetry" Wild flowers are in full bloom all over the Suzaku Bridge, and the sunset at the mouth of Wuyi Lane is setting in the west, reflecting disappointment and desolation. The glory and splendor of the past have long since ceased to exist. Swallows used to stay in luxury houses such as Wang Dao and Xie 'an, but now they have flown to ordinary people's homes. Appreciation: The poet's deep feelings about the ups and downs. Suzaku Bridge and Wuyi Lane are still the same, but the grass is overgrown and the setting sun is slanting. The desolate scene has implied the poet's sensitive experience of prosperity and decline. The last two sentences use the nest of swallows to express the author's lament about the vicissitudes of the world, the ups and downs, and the pen is especially tortuous. This poem is the second in Liu Yuxi's famous epic poem Five Topics of Jinling. Why did Wuyi Lane get its name? Wuyi Lane, on the south side of Panchi in Confucius Temple, is the oldest street in Nanjing and the former residence of Wang Dao and Xie An, the prime ministers in the Eastern Jin Dynasty. It was very prominent in the Six Dynasties, and a poem "Wuyi Lane" by Liu Yuxi, a poet in the Tang Dynasty, made it spread through the ages. The origin of the name of Wuyi Lane has also attracted people's attention. There are myths and legends: Wang Xie, a native of Jinling, was capsized by a storm during the voyage, drifted to Wuyi country, married and had children, and then returned to his hometown, but he missed his relatives in Wuyi country very much, so he named the lane of residence "Wuyi Lane". There is also a saying that Wang Dao and Xie An, two disciples, like to wear black clothes because of their romantic skirts, so later generations call this alley "Wuyi Lane". In fact, the name of Wuyi Lane originated from the time when Sun Quan made Nanjing his capital. In 229 AD, Sun Quan made Nanjing his capital. At that time, the eastern bank of Qinhuai River was still a suburb, and troops were stationed to defend the capital. Because soldiers were all dressed in black, the garrison camp was called "Wuyiying". By the end of the Western Jin Dynasty, the former site of Wuyiying was renamed Wuyiying. After Sima Rui crossed to Jiankang (Nanjing), Wang and Xie Wangzu established Wuyi Lane.