Famous sentences and rhetorical devices used in Bai Juyi's Song of Eternal Sorrow (the more the better? )

The earth endures, and the sky endures; One day, both will end, and this endless sadness will continue forever-Tang Juyi's Song of Eternal Sorrow will end even if it lasts forever; It's just that this life-and-death feud will never end

This sentence uses contrast, comparing hate to eternity.

We hope to fly in the sky, like two birds, with the same wing; We hope to grow together on the ground, like two branches of a tree. -Tang Juyi's "Song of Eternal Sorrow" Two people are willing to be a pair of birds flying together in the sky; I want to be two branches that grow together on the ground.

As a metaphor, this sentence compares them to birds and branches.