I think this song is about a relationship that has been going down hill("we shouldn't have to fight, or worry about the bills tonight"), but now he realizes that he wants things to be good again("bring back the sun, the mystery is gone"); ("i'm hanging up my ego"). Like he was unsure about things, but now he is sure he wants this("bury this hate and fill it with love").
I think this song is about a relationship that has been going down hill("we shouldn't have to fight, or worry about the bills tonight"), but now he realizes that he wants things to be good again("bring back the sun, the mystery is gone"); ("i'm hanging up my ego"). Like he was unsure about things, but now he is sure he wants this("bury this hate and fill it with love").