Excuse me. From which poem does the poem "After three months of war, a letter from home is worth a ton of gold" come?

This is a poem by Du Fu, a great poet in the Tang Dynasty. His whole poem is as follows.

What spring looks like.

Author: Du Fu

Chang' an fell, the country was broken, and only the mountains and rivers remained; Spring has come, and the sparsely populated Chang' an city is densely forested.

Sad state, can not help but burst into tears, amazing birds, leaving sorrow and hate.

The war lasted for more than half a year, and letters from home were rare, with a hundred thousand gold.

Twisting with melancholy, scratching my head and thinking, the more I scratch my white hair, I can hardly insert a hairpin.

To annotate ...

1. Guo Po: refers to the capital Chang 'an being occupied by rebels.

2, feel that sentence: because I sigh about current events, I will cry when I see flowers.

3. hey: it's simply.

4, invincible: because of less hair, even the hair clasp can not be inserted.

The overall meaning of the poem

Chang 'an fell into the country, but only the mountains and rivers remained.

Spring has come, the city is empty, sparsely populated and the vegetation is dense and deep.

Affectionate state affairs face flowers, and tears are hard to stop.

The separation of parents and birds is thrilling and only increases hatred.

Since the beginning of spring, wars have been frequent and spread in March.

I seldom receive letters from my family in Zhangzhou. A letter is worth thousands of dollars.

Sorrow is entangled in scratching my head and thinking, and my white hair is getting shorter and shorter.

Hair loss is so short that it can hardly be inserted.

Creation background

An Lushan rose up against the Tang Dynasty. Because Tang Xuanzong favored Yang Guifei's younger brother Yang, he misled Tang Xuanzong and sent Ge Shuhan, who was guarding Tongguan, to attack the rebel stronghold outside the customs. Ge Shuhan was captured halfway. An Lushan lost his arch-enemy, and captured Chang 'an in one fell swoop. Emperor Xuanzong of the Tang Dynasty led his concubines and ministers to flee to Lingwu. Emperor Xuanzong of the Tang Dynasty abdicated, and Prince Hengli proclaimed himself emperor in Lingwu.

In August of the first year of Tang Suzong (756), Du Fu went from fū (now Fuxian County, Shaanxi Province) to Lingwu (now Ningxia) and defected to Tang Suzong. On the way, he was captured by rebels and trapped in Chang 'an. This poem was written in March of the following year.

This is a five-character poem, written in 757, the second year that Tang Suzong went to Germany. At that time, Chang 'an was burned and looted by Anshi rebels, and it was desolate everywhere. Du Fu saw that the mountains and rivers were still broken and ruined, but the land was desolate in spring. At this time of adversity and homesickness, he couldn't help feeling deep sadness and infinite emotion. The poet showed patriotism in this poem.