What thoughts and feelings are expressed in Yun Prison's poems?

This prison poem is an ancient poem written by proletarian revolutionary Yun in prison. The work expresses that the author has been running for the revolution all his life and has seen many comrades-in-arms give their precious lives for the revolution. Now, we should abandon all personal gains and losses and be a proud "Chu prisoner", even if we sit through the enemy's prison! The whole poem embodies the author's great personality and noble sentiment.