What emotion does the sentence "I want to sit through this prison" express to the poet?

This is a line written by the revolutionary martyr He Jingping in the Zhazidong concentration camp of the Kuomintang Sino-American Cooperation Institute in the summer of 1948. What I understand is to carry the revolution through to the end and overthrow everything that is reactionary and unreasonable. The so-called prison is a metaphor for dark reactionary forces.