Advent can easily become a spiritual struggle when you have decorations, gifts, and Christmas preparations on your plate. But it doesn’t have to be that way. The Church helps us to intensify our efforts of prayer and spiritual preparation for Christmas starting on December 17. From December 17 to the 23, the Church offers us the “O Antiphons” — short prayers that attribute Old Testament titles to Jesus and point to how they find their fulfillment in him…