: Li Bai was once keen on pursuing fame and gain, hoping that "his body will not be immortal, and his name will be in Green" ("Learning from the previous life, this world is Taihang"). However, after a series of setbacks such as "paying back the money" and exile Yelang, I deeply felt the illusion of wealth, and sometimes I couldn't help showing a sentimental mood that life is fleeting: "The living are passers-by, and the dead are the returnees. If the heavens and the earth are contrary, they will be sad and eternal. " The living are like passers-by who come and go in a hurry, and the dead are like returning guests who have gone to their destination and never come back. Heaven and earth are like a welcoming hostel; Life is short, and countless people have sighed through the ages. As for heaven and the underworld, "the moon is empty, and Fusang is paid." The bones are silent, and the pines don't know spring. "According to ancient myths and legends, Hou Yi got the elixir from the Queen Mother of the West, and his wife Chang 'e stole it and flew into the Moon Palace. In the moon palace, only the big white rabbit worked for her. Although Chang 'e lived forever, she lived a lonely life without any joy. Fusang, according to legend, is a towering tree in the East China Sea. Where the sun rises, it has now become dead wood. The buried bones are gloomy and silent, and they can no longer appreciate the fame and honor before their death. The lush pine trees are complacent, ignorant and unable to feel the warmth of spring. The so-called "grass doesn't thank glory in the spring breeze, wood doesn't complain about autumn fall" is just "everything is natural" (Li Bai's "Day in and Day out"). The poet looked up and down and imagined that everything in the universe was changing suddenly and there was no eternal prosperity. " Back and forth more sigh. What is glory? "Finally, the whole article ends with a warning. The long life is like this, and the glory of the moment is really not enough to cherish. After lamenting that life is short, some chapters in Nineteen Ancient Poems often reveal a decadent mood of eating, drinking and having fun. Although Li Bai lamented that life is short in this poem, he did not preach negative and depressed thoughts, but profoundly exposed the illusion of feudal prosperity. This is the poet's summary of his bumpy life, which is rich in content.