[If it's talk about light and dark then of course Naminé is going to be pinged, regardless of who mentions it. She glances at the girl and takes a moment to wonder how she's levitating like that. Is it the same thing that lets Moogles float without needing to flap their wings?]

I think it's just one way for them to have fun during the winter. Otherwise it'd get very miserable, just sitting around and trying to stay warm.