Need views on the poem I wrote?

It is clearly a catharsis of anguish and usually makes one feel good to put it on paper. It means more to the writer than to anyone else. Needs grammar and punctuation work, though. I don't quite get the metaphor of unleashing a cage. How do you do that? Also, how does demise beat? Never heard of that, either. Clearly an attempt to exorcise some internal demons or pain in a flurry of imagery obscured by innuendo. You are trying to articulate the reality of pain through surreal verbal manipulation. Reasonable try, though. Keep at it and you may develop your talent.