It's as if the children are trying to support this broken heart and maybe trying to make it feel better. The cherubs at the bottom look like they are trying to keep the heart in the air and above all of the pain and troubles.
There's an old saying about those who forget history. I don't remember it, but it's good.
If you are happy and you know it, then the chemtrails are finally working!- Cecil, from Welcome to Nightvale
ALL HAIL THE GLOW CLOUD