this photo is taken by google
imagine that you are a river stone. This river is very strong current, although you do not want to drag you.
Now imagine that like you there are other stones that the current drags.
during the day you get very hot and you collide with other stones, in the night you cool like a piece of ice and you are dragged by the current.
so you hit each other again and again with the stones ...
you have two options
1.- from so much colliding between hot and cold, you get a shape, you define yourself, you carve.
2.- from so much colliding between hot and cold, you break you vanish and you become sand from the river.
the decision is yours.
