This little rock is a rock that came from space called a meteor. It zoomed from outer space into this mysterious planet creating destruction in its wake, yet bringing life to bloom around it. This is essentially what wabi-sabi is, the beauty of plant life growing around the destruction of the little meteor crater. A meteor, of course, cannot crash into any planet without momentum. When the meteor hits, all the momentum that it conserved up until that point is released into the ground. A cycle involved in this could be the meteor crashing, growing life, and then the life had to move to another planet, and then everything dies, and then another meteor crashes into whatever planet and starts it all again.