Which sentence in Du Fu's "The Hut is Blown by Autumn Wind" explains the background of the times?

"I haven't slept much since the mourning (sāng), so I can't get wet all night!" After suggesting that it was an Anshi rebellion?

Two sentences, one vertical and one closed. First, from the present situation to all kinds of painful experiences since the An Shi Rebellion, from the stormy hut to the war-torn country; As soon as I closed it, I returned to the reality of "getting wet all night".

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