Well, apparently they had to or the lava would've gotten all the people in the town!

[ Aang and Ikki have been trading bedtime stories about their lives. She's probably not giving enough context for this one, though. ]

I think looking at the sky is fun, though! Umm, actually, we had to learn about cloud types, but that's not the fun part! I caaaaaan so sit still for a while, an' I don't even fall asleep when I'm meditating! Well, anymore.