You already know that this land of the clean exists. Your sense is that most people live there and you never will. You are a crab (an unclean animal), and a crab can’t suddenly morph into a cow (a clean animal). You assume that there is no path between the two, only thick, impenetrable walls. And you are right. You can’t simply decide to walk over to the clean part of town. But you can do something.
