Sky always exists over our heads.
Somebody decided at some point that this color should be named “sky blue”
– this feels like a concept or an idea to me.
Most often, when a child paints, this color is, without hesitation, used as the color of the sky. As a concept, I imagine, the sky itself would have the natural shape of the stone (a stone ?).
The stone becomes sky – a piece of the sky that over time, comes down from there and merges with the nature.
I could imagine, that this „shakes“ the imaginations and the feelings, which people have cultivated over time. Perceive and believe in this magical reality.

I think, this can be achieved through art.