Advent
Beginning the Church's liturgical year, Advent (from, "ad-venire" in Latin or "to come to") is the season encompassing the four Sundays (and weekdays) leading up to the celebration of Christmas.
As we prepare for Christmas, the General Instruction of the Roman Missal notes some differences to the Mass that should be observed during the season. For instance, the priest wears violet or purple during Advent, except for the Third Sunday of Advent (Gaudete Sunday) when rose may be worn (GIRM, no. 346). Aside from what the priest wears, other aesthetic changes in the Church can include a more modestly decorated altar.
The final days of Advent, from December 17 to December 24, we focus on our preparation for the celebrations of the Nativity of our Lord at Christmas. In particular, the "O" Antiphons are sung during this period and have been by the Church since at least the eighth century. They are a magnificent theology that uses ancient biblical imagery drawn from the messianic hopes of the Old Testament to proclaim the coming of Christ as the fulfillment not only of Old Testament hopes, but of present ones as well.
Advent devotions including the Advent wreath, remind us of the meaning of the season. Our Advent calendar can help you fully enter into the season with daily activity and prayer suggestions to prepare you spiritually for the birth of Jesus Christ.
[adapted from usccb.org]
