[Abstract as the whole thing is, it strikes more of a chord with Alphonse than a lot of perfectly mundane descriptions of magic have managed to do. Maybe it's because his own body is sustained through similarly convoluted means.]

I'd definitely like to hear more about how your world works sometime.

[Saying he understands might be a stretch, but he's certainly interested.]

But I'm glad it's not causing you any problems here. I hope you're still eating every now and then, though.

[He is deadly fucking serious when it comes to food.]