[He sort of vaguely waves his hands, as if that can explain it, before getting sidetracked by Lup telling Thor to behave. He gives her a quick peck on the cheek before she backs off, then returns his attention to Thor.]

A focus is like... a way to channel power, magic, usually, but I dunno if that's what I'd call your shit. Like my umbra staff, or a wand or a stave, whatever you wanna use, cause like, I can cast magic without it but it's messy and dangerous and I could end up killing myself or someone else.

[He gestures between himself and Thor; like what just nearly happened.]