He hesitates before answering--it's odd, to have to explain these things. Children were taught it, of course, but certainly not by Corvo, and the Abbey was not nearly as much of a presence in Serkonos as it is in Dunwall. "The Abbey says that the world emerged from the Void--it's like your Fade, very close to it. And the Void seeks to reclaim it. Chaos and immoral actions supposedly speed the process up, so living a moral, righteous life is supposed to...slow it down." He's pretty sure that's the long and short of it, though he's sure somewhere in the distance, Overseers are feeling the sudden urge to smack his knuckles with a ruler.
no subject