Because too much of my life was spent waiting to be seen. Hoping to be seen, hoping to be picked. Once you realize that you aren't looked at that way any more, other things start to happen and you have to depend on other things to get by.
My capacity as a monk was to passionately believe utter nonsense, and when you're an actor you have to do the same thing. Also, Christianity used to have a lot to do with self-loathing and an acceptance of criticism and things like that which is terribly important for actors.
I never go to a gym unless I have to for a role, a contract. I try to take care of myself as a human being, not because I have to be in front of the camera.