Dizi and Xiao are very common in ancient poetry. What feelings do poets often express through them?

The flute is a beautiful and melodious music in Qingyuan. In the quiet dusk, in the frosty night, in the ancient city where the sunset glow, and in the autumn wind, the flute will always echo, telling the blurred scenery and deep sobs in life. Wandering wanderers smell the flute and feel sad, anxious to return; Soldiers guarding the border pass smell the flute and miss home and relatives; When the official heard the whistle, he complained, hurt himself and mourned himself ... All these things are varied and colorful, which can really be described as "the Jade Emperor boasted and left thousands of feelings".

(1) Homesick wanderer, anxious to return Li Bai's "Smelling the Flute in Los Angeles on a Spring Night" spreads the warm feelings of thousands of wanderers who miss their hometown through the sound of flutes all over the city. "This person in di secretly flying, scattered into the spring breeze full of Los Angeles. No one can miss his hometown! " One spring night, the lights went out and the noise of the day was calm. Suddenly there was a loud and sweet flute, which fluttered with the wind and covered the whole of Los Angeles. At this time, there was a wanderer who was far away from home. He leaned against the window independently, looked up and found that it was in the moonlight that Zhang was lost in thought when he heard the flute. Instead, it was the song "Folding Willow" full of parting feelings. It turns out that the ancients had the custom of breaking willows when they left, and willows were reluctant to part. Now, in such a night intoxicated by the spring breeze, in such an uncertain place, who can't miss home when listening to such a sad and painful song? In the dead of night, the spring breeze blows and the flute flutters over Los Angeles. The words "fly" and "full" are easily associated with people. It seems that thousands of wanderers listen to the flute, feel homesick, fly with the wind and return to their hometown. What an urgent matter this is. Anxious to return's mood is beyond the comprehension of those who have suffered from parting.

(2) People are homesick and complain repeatedly. Wang Zhihuan's famous poem "Liangzhou Ci" expresses thousands of feelings through the tour of Qiang officials. "The Yellow River is far above the white clouds, and Wan Ren is an isolated city. Why should a strong enemy complain about the willow? The spring breeze is insufficient. " The word "resentment" is the whole article, which controls the whole poem. The resentment of the Qiang people is really the resentment of the soldiers guarding the border. Second, the spring breeze is uncomfortable, and the willows are not green. Such a vast and sparsely populated barren land is not flowers and birds, but old and desolate; The three major grievances of the emperor's kindness are endless, and the "spring breeze" can also be used to describe the emperor's kindness. To the west of Yumenguan is a desolate and cold area. Wang Wei wrote a poem, "Advise the monarch to drink more and go out of Yangguan for no reason", which an old friend has not seen so far, let alone the kindness of the emperor. It can almost be said that this is an isolated isolated isolated city where a group of soldiers are left out in the cold. Lonely mountains accompany them. The word "why" in the poem shocked our hearts again. When border guards are homesick, they can also realize the great responsibility of defending their country. Why complain? There is no need to complain, and complaining is useless. Soldiers don't complain because they realize that they have more important responsibilities than "resentment". These three words show the broad-minded side of soldiers when they are sad. They can always think of the great righteousness of the country in difficulties and hardships.

The frontier poet Li Yi's "Joining the Army in the Northern Expedition" is even more tragic and moving. "After the snow in Tianshan Mountain, the sea is very cold, and it is difficult to walk after blowing all over the flute. Looking back at the bright moon for a while, "the flute is played all over, implying homesickness." In this way, the reader enters a state of seeing the sadness of the strong. The track "Hard to Walk" also takes care of the environmental description in the first sentence. The difficulty and hardship of marching in the snow and cold wind is unimaginable, which is also one of the sad contents of the flute. The last two sentences, "Look back at the moon for a while", are typical close-ups of "homesickness". The bright moon is in the sky and the white sand is boundless. Looking back at the bright moon, what a magnificent, sad and far-reaching sight it is. The poet wrote with great exaggeration that marching soldiers are everywhere, filling the world with deep homesickness. This large-scale, high-density homesickness is all blown by flutes. In this way, the poet skillfully unified hunger and bitterness with the desire for the moon through the flute blown all over the ground, so that the poem expressed anger without mourning.