Music is one of those universal things and as in visual art I believe it is percieved differently by each person. To me this song is about a relationship; a happy relationship that the "protagonist" is wondering/waiting for something to go wrong. I've been in past relationships where all was going so well and I was so happy that it made everything in life seem better, like being in a feeling of ecstasy. It was almost like I was expecting for something to go wrong -happily it never did :) --Although I think the song was actually written about nuclear war.