I guess you`re happy if you have some kind of balance in you. I`m a human being. I have days when I feel paralyzed, days when I feel like a slug. Then I have days when I have good energy, I`ve read the newspaper and I`ve done different things.
It`s actually meditative to sit in a character for an extended period of time, realizing what your relationship is to who you`re playing and then letting go, just being there.