A comfort zone can be a mental state:Belief in God is a lot of peoples's comfort zone. Dont get me wrong, I'm not knocking faith; I just dont think you should have it because it makes you feel safe. I think you should have it because you do. Because somewhere deep inside you, you know beyond equivocating that something greater, wiser and infinitely more loving than we're capable of understanding has a vested interested in the universe, in the way things turn out. Because you can feel that, as much as the forces of darkness might try to gain the upper hand, there is an Upper Hand.