Who can be the subject of poetry appreciation?

The first sentence "Five In the snow in Tianshan Mountains" has been closely related to the theme. May, midsummer in mainland China. Han Yu said, "Pomegranates are blooming in May, and children begin to grow." Zhao Wei said, "Harmony is like spring and autumn, and it is better to travel in May." However, the May written by Li Bai is under the jam. In Tianshan Mountain, what you see and feel is very different. Tianshan Mountain is isolated from the world, with snow all year round. This huge contrast between the scenery of the mainland and the fortress in the same season was keenly captured by the poet. But he did not describe it in detail and objectively, but slowly expressed his inner feelings with a faint pen: "There are no flowers, only cold." The word "cold" vaguely reveals the fluctuation of the poet's mood, not to mention the bleak tune of "Folding Willow" in the cold wind! Spring is invisible in the frontier, and people can only receive it from the flute and enjoy it. "Folding Willow" is a cross-wind song for Yuefu, which is more about the sadness of travelers. Here, the poet's writing of "Wen Liu" also contains a layer of desolate and bitter emotions. He plays the flute to make up the atmosphere. Shen Deqian commented on the first four sentences of "Song of Xia Sai" and said: "Four words go straight down, which was not available before." He also said: "If you are angry, you will not be bound." Poetry is the five laws, and the two couplets are used to it. However, Li Bai's desolate artistic conception, which followed the trend of the first couplet and refused to converge slightly, broke through the fetters of metrical poems and was characterized by straight and unrestrained language. "Sean Xiao follows the golden drum and sleeps on the jade saddle at night." In ancient times, it was necessary to beat the drums to control the advance and retreat of foot soldiers. I wrote five or six sentences about this situation. The semantic change has changed from desolation to grandeur. The poet imagined that he came to the frontier fortress at the foot of Tianshan Mountain and lived a tense fighting life all day. March in the sound of gongs and drums during the day and take a nap in the saddle at night. Here, "Sean Xiao" corresponds to "sleeping at night". When the author intends to sum up his life in the army for one day, the military situation is tense and urgent. The word "sui" is forbidden in the orders of foot soldiers. The word "Bao" depicts the situation of foot soldiers guarding at night. The second sentence is about the life scene of foot soldiers, who are guarding the border and preparing for war, and everyone's mentality of fighting bravely for the first place is also revealed. The couplet "I would like to cut Loulan with a machete" tells the story of Fu Jiezi's generous revenge, which shows the poet's ambition to go to the battlefield to kill the enemy for his country. The words "straight" and "willing" echo each other, with strong tone, and a group of voices, bursting out, have their own artistic appeal.