Usually, when I do a soundtrack, the music from the movie doesn't have anything to do with me personally. It's music to enhance to the film. My own stuff is more introspective and about what's on going in my head. ↗
If you remember you just have one constituent, and that's God himself, and if you try to please him I think you usually come with a lot steadier pace and a lot more peace in your life. ↗
I don't think a lot of actors talk about it, but there's usually a process where you essentially purge yourself of the character that you played prior to the movie. ↗