"It's a mystery, writing songs. I think that is why I've been doing it for all this time. I like that mystery: 'How come I feel this way? Why do I hear this thing in my head, but can't quite get it to come alive?' On those occasions that you do get it right, when you say what you want to say with music and words - the dopamine floods through your brain, and whoa! You're hooked. You could spend years trying again, because you want that dopamine fix"