Modernity is an engine we need to learn to operate. I suspect we are all operating with metaphors, whether we know it or not. Depending on road conditions, a mini-bus driver knows which buttons to push, which gear to shift into. He knows the number of passengers, the stops available to them.
He may not know the final destinations of his passengers, and he does not need to understand. He takes them where he can, on fixed routes, and leaves them to their own fates. The passengers do not know their driver, except that he has a useful and crucial function to serve. In this way, by attending to fixed routines, the disorder of modernity is brought under control. We are all engines (dare I say machines?) connected to one another.