Speaking of angels. I see through Biancca's point. If they're not totally human, they can do some things people can't do. And in this case they can make wings if you'd like to see that. But, frankly speaking, why do they need to connive all your beliefs? They're just antropomorphous.

Well, don't pay attention to this post, if it's vague. I just wrote what had been in my mind at that very minute not thinking much of it.