In Roman Catholic churches, this is Laetare Sunday, or the fourth Sunday of Lent. "Laetare" means "rejoice" in the imperative form and comes from the day's introit, "Laetare Jerusalem." The Gospel is the story of the loaves and fishes, John 6:1-15. The day is also called Rose Sunday because the vestments may be changed from purple to rose, brightening the solemnity of the season with the color of flowers. A similar day is Gaudate Sunday during Advent.