A man is reaching for glory and "the sky". He has traded in his humanity for his chance at glory, and has adopted some very harsh ethics (or none at all). He remembers what it was like to be good and nice, and he's still hurt from the memories of that, but he is looking for a new way and is comfortable with how he is now, and he will not fake being like his old self. He also claims he is misunderstood.
Here's my take:
A man is reaching for glory and "the sky". He has traded in his humanity for his chance at glory, and has adopted some very harsh ethics (or none at all). He remembers what it was like to be good and nice, and he's still hurt from the memories of that, but he is looking for a new way and is comfortable with how he is now, and he will not fake being like his old self. He also claims he is misunderstood.