Please analyze the rhetorical devices used in poetry in Reading a Night Abroad?

Synaesthesia!

"If only my art could bring me fame" is not famous for his political ambitions, but for his articles. This is not his own ambition, so saying "no" exposes his indignation that his political ideal cannot be realized. When it comes to "liberating my sick old age from the office!" The poet resigned from his official position, not because he was old and sick, but because of what reason, the poet didn't say it directly. It is wrong to say "should", which shows the grief and indignation of the old poet. Facing the vast and lonely Yuan Ye, I think of my own suffering and feel helpless. I am like ou, in this lonely night, there is no dependence between heaven and earth. According to Sha Ou's own situation, this means self-injury.