Du fu's poems describing the endless suffering brought by war to the people.

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

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Du Fu's Hope in Spring

"After three months of war, a letter from home is worth a ton of gold." From the Anshi Rebellion, "the war was fierce and the countryside was broken", and the war continues until the end of March and spring. How I look forward to hearing from my relatives at home. At this moment, a letter from home is really better than "tiger balm"! "A letter from home is worth a ton of gold" wrote the long-awaited urgency of news isolation. This is the idea in everyone's mind, which naturally makes people * * * sound, thus becoming a famous sentence that has been told through the ages.