The celebration of Christmas Day is so important that the Church has prepared three Masses to be said for the Feast. There is the traditional "Midnight Mass," still popular at midnight in some cultures, especially in Samoa, but nowadays in Australia it is mostly celebrated late in the evening of December 24. In many places this has become a "children's Mass," as the excitement of presents from Santa Claus, family, and a special meal rightly take over on December 25, especially for the children. On Christmas Day there is a special Mass at Dawn, to recall the dawning of a new era in human history, the day in which we rejoice because a Saviour has been born to us. Finally, there is a Mass to be celebrated at any time of Christmas Day. On Christmas Day priests, who normally celebrate one Mass per day, are allowed to celebrate all three Masses. I know that these are only external signs, but they indicate the wonder of the moment: on Christmas Day we celebrate the gift that God gave to us: his Son.
Each of the Masses has its own Readings. The Midnight Mass and the Dawn Mass describe the birth of Jesus and the visit of the shepherds from the Gospel of Luke. These are the images that remain with us at this time of the year, so important for our Christmas carols, the Crib, the cards we exchange, and many other elements of our joyful celebration. However, at the Mass during the Day the Church uses one of the most solemn readings that can be found in the Gospels: the first page of the Gospel of John.