I learned about street art in a college class. The unique thing about it, is that location matters. A piece of art on one wall does not mean the same thing on another wall.
That being said, this also makes use of location. This can only be on a wall like this one. It cannot be on a regular wall.
What this says to me, on a more general level. We cannot know everything. We cannot know how one thing may affect the other. And we cannot know what something truly is – what the child thinks is snow, is actually ashes. We must question, research, and analyze everything. Nothing can be taken as a given. Even though the world is uncertainty and full of suffering, we must live in it. We must push on – stoicism.