I have found another meaning. It is also meaning that the fireflies all around that they mention must be some event. And who would catch fireflies? Children. The writer also says that he "likes to make himself believe the planet Earth turns slowly", which could mean that he would like to grasp childhood innocence, but the world is merely moving to fast in a hypothetic way. Just like as adults say, "you've grown up so fast!". That is also another meaning.