What does Ye Ting mean by "prison song"?

Prison Song is a vernacular narrative poem written by Ye Ting, a modern revolutionary, when he was imprisoned in Zhazidong, Chongqing. This poem was written in 1942. The whole poem is divided into two sections, which are clear and easy to understand, and seem to blurt out without saying anything, but the emotion is intense, the momentum is heroic and the artistic conception is clear and complete. This is the true expression of the poet's noble sentiment, which makes readers feel shocked and moved by the awe-inspiring righteousness in the poem and respects the poet's noble personality.

The prisoner's lament

(Transcribed according to the author's handwriting)

The doors that people come in and out are locked,

The hole the dog climbed was open,

A voice shouted:

Climb out and set you free!

I long for freedom,

But I also know-

How can a person's body crawl out of a dog hole!

I can only hope,

That day-

The underground fire burns rapidly,

Burn this living coffin with me,

I deserve eternal life in fire and blood.

The poetry of this article is:

The road taken by revolutionaries is tightly locked by the enemy, but the road to surrender, which betrays the revolution and acts as a shameful traitor, is open. The reactionaries shouted at the top of their lungs: surrender! Give you freedom! I long for freedom, but I deeply understand how a real revolutionary gets freedom by selling out the revolution! I hope that one day, the torch of revolution will burn me with the prison of reactionaries, and I will gain eternal life in the struggle between blood and fire.