He nods his understanding. Yes, that makes more sense. It's interesting, too, how Kuai seems to struggle with this, when in every previous conversation he seemed to be fairly measured, composed. Confident. Thoughts of the other man make Kuai's mind fix on that subject until the rest is tuned out. That's one hell of an emotional attachment.

"He's well here. That's what matters now. There's nothing we can do about the worlds we left behind," he reminds Kuai patiently, because he knows it's what he reminds himself when he's worrying about Law. Law, however, is a child, all alone and terrified. Not a grown man and a warrior. Perhaps he was slow to realize at first, but the nature of Kuai's interest is becoming clearer to him.