The rhythm of the liturgical seasons reflects the rhythm of life — with its celebrations of anniversaries and its seasons of quiet growth and maturing. Ordinary Time, meaning ordered or numbered time, is celebrated in two segments: from the Monday following the Baptism of Our Lord up to Ash Wednesday; and from Pentecost Monday to the First Sunday of Advent. This makes it the largest season of the Liturgical Year.
Using vestments and liturgical environment, usually green, the color of hope and growth, the Church counts the thirty-three or thirty-four Sundays of Ordinary Time, inviting her children to meditate upon the whole mystery of Christ – his life, miracles and teachings – in the light of his Resurrection. If the faithful are to mature in the spiritual life and increase in faith, they must descend the great mountain peaks of Easter and Christmas in order to "pasture" in the vast verdant meadows of tempus per annum, or Ordinary Time.