Kara no Kyoukai
Episode 1 “Overlooking View” (2007) Ufotable
“I had a dream, A dream about a dragonfly. … this dragonfly was flying around, busily. And then a Butterfly showed up. It flapped its wings as hard as it could, trying to keep up, but it was too much. In the end, it tumbled to the ground, exhausted.
If it had fluttered its wings as if it were floating, I think it could’ve stayed in the air longer, but since that butterfly knew what it was like to fly, It just couldn’t bear its lightness as a floater. That’s why it flew”