In his book of the three greatest prayers, St. Thomas Aquinas takes up the question of polytheism in his day. Aquinas states that if you love other things before God, you have slipped into a kind of polytheism. If you look at the list of 5 false Gods given by St. Thomas Aquinas, and you look at the new Gods that have arisen in our time (money, possessions, recreation, sports), it would be surprising if we did not find at least one that has, quite quietly, but very powerfully, become a God in our our lives.