"WEll, it's not really ,y belief structure, but areas like this are traditionally said to have a kind of power. You ever see Dogma? The part where Silent Bob is able to kill a demon with a golf club because the priest blessed it? this place has be blessed thousands of times over. If stuff like that can be believed, which, considering since we have Superman, I'm willing to believe, the faith here could possibly stop a demon in it's tracks a hundred times better than any of your fortifications. Y'know, as long as you doing that didn't screw with the protection."