Why was Li Bai sentenced to "exile Yelang"?

To put it bluntly, it was all because of the An Shi Rebellion that broke out in 755 AD. Lin li, the sixteenth son of Xuanzong, recruited soldiers and sent troops to the East under the banner of Jingnan. In fact, he took the opportunity to expand his territory and wanted to be emperor in troubled times. When the soldiers crossed Jiujiang, they met Li Bai, a self-help traveler, and thought his brand could be used, so they recruited him as their staff officer. Li Bai, who was untimely, thought that he finally had a place to use, and he agreed at random, so he was involved in the whirlpool of imperial power struggle. With the accession to the throne of Emperor Xuanzong's three Jpua forces and the restoration of state order by authentic government forces, Li Lin, a "fake and shoddy", was defeated and killed, and Li Bai's dream of going into politics went bankrupt again, and he was arrested for treason. I was going to halve it. I was sentenced to exile because Guo Ziyi put in a good word for Li Bai in front of Tang Suzong. Yelang is a slightly better punishment for Li Bai than death. Make up for it with suffering Li Bai, this time is bad enough. If we really want to investigate, we can't completely blame the Anshi rebellion. Didn't Du Fu catch up? No big deal. Why did Li Bai almost lose his life? In the final analysis, you have to blame yourself, because you are obsessed with officials. I am always happy when I see the power of attorney, and I can't see any future trouble. At first, Li Bai thought that the splendid article was destroyed, and later he was sentenced to exile. I don't know whether it's sad or lucky. Therefore, Yelang is a place name that fills Li Bai's heart with flavor. Did he say that he had a narrow escape without invitation, or did he go there and die slowly, even if he died? Before this, Li Bai was not ignorant of Yelang, nor was he without imagination. Although the Yelang in his imagination is desolate, there is no lack of desolate poetry. One of his famous poems, "I heard that Wang Changling moved to Zuobiao Dragon, and there is news in the distance", mentioned Yelang's poem: "The flower of the Yang falls to the ground, and the dragon marks the five streams. I am worried about the bright moon, and I will follow the wind to Yelangxi. " Wang Changling, a friend who was once banished to a distant place, said, No matter the ends of the earth or the bright moon overhead, my thoughts are with you. Yelang is far away, after all, there is still breeze and moonlight. Now that I think about it, it's a little easy to stand and talk. Alas, now, I am worse than Wang Changling, and I need comfort more than him. But who can comfort himself as much as he can comfort him? Walking on the road to Yelang, Li Bai's heart is dying, and his figure is particularly lonely. Looking up at the bright moon, don't be poetic. In the distance, in the distance, in the distance, in the distance, Yelang is like a nightmare waiting for a poet who has suffered a disastrous blow. The word itself seems to represent all the darkness in the world. Li Bai really can't figure out how he got on this road.