If you are part of a religion that very strongly insists that you believe then to decide not to do that is quite a big hurdle to jump over. You never forget the thought process you went through. It becomes part of your whole intellectual picture.
Musicians are there in front of you, and the spectators sense their tension, which is not the case when you're listening to a record. Your attention is more relaxed. The emotional aspect is more important in live music.
I think one of my pursuits over the years is trying to answer the question of, 'What else can you do with a voice other than stand in front of a microphone and sing?'
I've got a feeling that music might not be the most interesting place to be in the world of things.