world that was “significant,” that pointed beyond itself to a deeper truth. A symbol, however, goes deeper. Paul Tillich, the twentieth-century theologian, got at the distinction through an illustration similar to the one that follows: you’re heading to Daytona Beach, and you see a sign that says, “Daytona Beach, 14 miles.” The function of that sign is to point you on the way, to point you toward a reality that is beyond itself. But when you drive your car that fourteen miles, you see another sign,