In one of the Biblical creation stories, we read that God formed Adam from dirt. We are told later that we return to dust when we die. The way I see it, we and all the rest of creation are somewhere between dirt and dirt. Painting a person out of a landscape reminds me that that we are all fragile, that nothing I make is truly permanent.
It also reminds me that I am composed of tiny particles of mountains and plants and rivers. I am small but am part of Something big.