It is a famous sentence by Du Fu, a poet in the Tang Dynasty, which comes from the famous sentence "My Topic". Among them, eternal events mean that writing an article is of great significance, while in-depth understanding means that the author himself understands the article most thoroughly. This poem is neat and full of philosophy.

It is a famous sentence by Du Fu, a poet in the Tang Dynasty, which comes from the famous sentence My Topic. Among them, it means that writing an article is very important, while knowing it means that the author himself understands the article most thoroughly. This poem is neat and full of philosophy. The main consciousness expressed in this poem is that making a fuss is something that has been passed down through the ages, and only oneself knows the ups and downs, and all the authors are people with different status and will not be in name only. The first two sentences are the poet's understanding of poetry creation in his later years, and he has his own understanding summary.