As a kid, you go to the beach and after a swim, you get the idea that the sand around you could be something else, so you start to form it into shapes. Then, other kids come along and they help you. Before you know it, you have created a castle together. Then, you start to create something else but suddenly an angry foot comes along and kicks it all down because the foot doesn't get it and its only way to cope is to destroy whatever it doesn't understand.