跪求 英文诗 I'm whoever

是有关哪方面内容的诗？这个是吗
　　Who am I? They often tell me I would step from my cell's confinementcalmly,cheerfully, firmly, like a squire from his country-house.Who am I? They often tell me I would talk to my warden freely and friendlyand clearly, as though it were mine to command.Who am I? They also tell me I would bear the days of misfortune equably,smilingly, proudly, like one accustomed to win.Am I then really all that which other men tell of, or am I only what Iknow of myself, restless and longing and sick, like a bird in a cage,struggling for breath, as though hands were compressing my throat,yearning for colors, for flowers, for the voices of birds, thirsting forwords of kindness, for neighborliness, trembling with anger at despotismsand petty humiliation, tossing in expectation of great events, powerlesslytrembling for friends at an infinite distance, weary and empty at praying,at thinking, at making, faint and ready to say farewell to it all. Who am I? This or the other? Am I