He's about to explain about angels, how they're vast, multidimensional wavelengths of celestial intent who need to hijack a human body if they're going to do the walking and talking with the monkeys thing, but something catches him up short, and he pauses, looking sidewise at her. He'd have thought, if she comes from the kind of world where gods make a habit of stealing bodies, the fact that angels do the same here wouldn't be particularly surprising. Presuming she's done her research-- which he's assuming, from her mention of the Bible, there's nothing in canonical scripture to indicate either way.

'They're not naturally corporeal,' he says slowly after a pause. 'Angels, I mean. If they want to actually come down and talk to humans, they have to take a vessel, same as demons. But from what I've gathered, they don't... usually end up giving the body back to the original owner.'

He pauses again, thoughtfully, eyes still narrowed. 'I don't even know if there are angels in this universe. Other than--' here Sam breaks off with a little laugh, an exhaled huff of understanding, and he lifts an eyebrow at Daine. 'You've met Gabriel, is that it? So he is really here.'

He'd still half-doubted whether he might not just be an especially cruel fragment of his own subconscious.