[He forgot, please let him rest. He's put no actual effort into keeping track of who knows what about what he can do, which is either extreme confidence in his ass-kicking ability or... like, just forgetting. Both, probably.]

Well, okay... [The Hand floats over to linger behind Okuyasu now, mostly just so he can gesture at it every so often.] So, The Hand's right hand can cut stuff, right? And then the stuff that's left kinda snaps back together to fill in the space.

[This explanation comes complete with helpful hand motions, or rather, Okuyasu waving his hands some and then clapping them together in front of him. Like this!!! Obviously.]

So... if The Hand cuts space, then the stuff around there gets pulled toward the empty spot.