For us Catholics, the new Liturgical Year commences with the first Sunday of Advent. In this new liturgical year, the Church not only wishes to indicate the beginning of a period, but the beginning of a renewed commitment to the faith by all those who follow Christ, the Lord.
The Season of Advent is therefore a season of vigilant waiting, that prepares us to welcome the mystery of the Word Incarnate, who will give the ‘Light’ to the womb of the Virgin Mary, but essentially this time prepares us not only to welcome this great event but to incarnate it in our lives. For this reason, let us live this time of waiting not only to celebrate a historical memory but to repeat this memory in our lives and in the service of others. To wait for the Lord who comes, means to wait and to watch so that the Word of Love enters inside us and focuses us every day of our lives. (catholicculture.org)