The Catholic phrase “liturgical year” refers to the schedule of celebrations, seasons, and feast days that we commemorate throughout the year (the most famous being Christmas and Easter). It actually gives a tremendous way to bring the Gospel into every-day life and to experience the scope of salvation history.
The “liturgical new year” begins with the first Sunday of Advent (four Sundays before Christmas). This time sets the stage of waiting and expectation for the coming of the Messiah, the birth of the Christ child. It gives a chance to begin again our reflection on the life of Jesus. We then celebrate the season of Christmas for about three weeks, which covers Jesus’ “hidden” life—from His birth to baptism. There is a period of “Ordinary Time” that leads up to Lent, which gives a more general reflection on His earthly ministry. With Ash Wednesday we start the forty days of special preparation for Easter Sunday, the day on which we celebrate the Resurrection of Christ from the dead. Easter Season lasts for fifty days until the feast of Pentecost, when the apostles received the Holy Spirit and went out to begin preaching. Finally, the Church returns to Ordinary Time to meditate on our Christian life until the end of the year. The final Sunday of the year commemorates Christ the King—giving us a chance to reflect on the everlasting kingdom.
That is a very brief sketch, but hopefully shows the way that the whole of salvation history is summarized in each year! Why go over it again and again? I think the best reason is because we need that to really let things sink into our understanding. Every time we walk through this path we have the opportunity for deeper insight and better application. May the Lord bless the new liturgical year, and may it bear much fruit. God bless!