Liturgical attire refers to the special clothing worn by clergy and other participants during religious services. This attire varies by denomination and tradition, often symbolizing the sacred nature of the rituals. Common items include the alb, a long white robe, and the chasuble, a sleeveless outer garment worn by priests during Mass. Different colors of liturgical attire represent various seasons and occasions in the church calendar. For example, purple is often used during Advent and Lent, while white is worn during celebrations like Christmas and Easter. These colors help convey the themes and significance of the worship service.