Without light, there is darkness, and without darkness, there is light. This two must co-exist with each other to create the world. Without the two of them, the world will never exist. I think this is what the song is trying to convey.
Just make sure you don't accidentally darken the light.
Great Song! It Was So Beutiful! I Can't Belive Diz Betrayed The Kids In Riddle Transfer
Please contact me if you would like to use this in a project. We can discuss the details.