"It's going to mean I can turn to wind," she says plainly. He may now recognize this as the exact thing she mentioned wanting to do...a while ago, before she even started working on shields with Taako. Actually, shields with Taako was meant to be a diversion back then.

(It only partly worked, as one can see)

Once she's close enough to shore that she's standing, it's easier to speak- her head above the water by virtue of height alone now, the water doesn't muffle her words. "If I can do that, then I can't be hit by things, right?"