Today's date would be displayed here if Javascript worked on your device. Disengage cloaking device. Some things are not as they seem, and if we judge something quickly, we may miss something very special about it.
Several songs are that way.
One such example is the story behind this song. It is not simply an archaic design by the songwriter. They were forbidden by royal degree to teach the catechism to their children. So they disguised their teachings in metaphors and put them to a tune. The carol reveals truths about Christ's life and message, highlighting several important to the Catholic faith.