I have definitely written a happy song about someone and then we ended up splitting up, but you have to put those kind of things to the back of your mind and tell yourself that it's a good song and it works on the album.
Far more has been accomplished for the welfare and progress of mankind by preventing bad actions than by doing good ones.
When it is working, you completely go into another place, you're tapping into things that are totally universal, completely beyond your ego and your own self. That's what it's all about.

