I love this song! It has tons of meanings to me! To me it means that Things are changing rapidly. Talking about the fireflies lighting up everything meaning, if we took all the technology. Because things are becoming so advanced now. If you close your eyes, you're missing a lot, because how fast things are changing. And with all that stuff, you could destroy everything if it gets out of control. It's hard to explain. But it is a very meaningful song, in my opinion. I love it.