What do you worship? To answer that, think about what you seek for guidance, and where you turn for comfort. It may be sport or music or career or entertainment or fashion or food. Everybody worships, even atheists, because it’s a human thing to do. But not all sources of guidance and comfort are healthy. In this Tale of Two Cities, we find a warning—some writing on the wall—that’s just as relevant in our city as it was in ancient Babylon.