Carbon

“Depending on where you look, what you touch, you are changing all the time. The carbon inside you, accounting for about 18 percent of your being, could have existed in any number of creatures or natural disasters before finding you. That particular atom residing somewhere above your left eyebrow? It could well have been a smooth, riverbed pebble before deciding to call you home.

You see, you are not so soft after all; you are rock and wave and the peeling bark of trees, you are ladybirds and the smell of a garden after the rain. When you put your best foot forward, you are taking the north side of a mountain with you.” — Ella Frances Sanders, Eating The Sun