The third Sunday of Advent in the Roman Catholic calendar of the church year. The term is derived from the Latin opening words of the introit antiphon, "Rejoice (Gaudete) in the Lord always." The theme of the day expresses the joy of anticipation at the approach of the Christmas celebration. This theme reflects a lightening of the tone of the traditional Advent observance. It was appropriate for the celebrant of the Mass to wear rose-colored vestments on this day instead of the deeper violet vestments that were typically used in Advent. This Sunday was also known as "Rose Sunday." This custom is not required in the Episcopal Church, but it is observed by some parishes with a traditional Anglo-catholic piety. This custom is reflected by the practice of including a pink or rose-colored candle among the four candles of an Advent wreath. See Laetare Sunday.