The burse is a stiff, often rectangular, cloth case used in Catholic worship. Made of richly embroidered fabric, it holds the corporal, a sacred object used in liturgy. The corporal, a square of linen, is placed on the altar during Mass. The burse itself has no direct liturgical function; its purpose is purely to protect the corporal. While simple in function, the burse holds symbolic meaning, representing the reverence shown to the sacred linens and the Eucharist. It is an integral part of the ceremonial elements of Catholic worship.