Choose any hour on the clock. It is possible, then, to conceive that the clock’s purpose is to return the hands back to that time, a time which, from the moment chosen, the hands leave and skate across the rest of the clock’s painted signs and calibrations and numbers. These other markings on the face become irrelevant in themselves; they are now simply clues pointing in the direction of the chosen time. It is then possible, too, to conceive of the clock’s gears and springs as each having its own intrinsic function, but within a whole mechanism, the larger purpose of which is to return to the chosen time. In this manner the clock resembles the universe.
Paul Harding, Tinkers

The most salient passage in an otherwise utterly inane book.