The altar cloth, a sacred object used in Catholic worship, is a rectangular piece of fabric, often linen or silk. Its color varies according to the liturgical season, reflecting the symbolic meaning of the celebration. During Mass, it covers the altar, the focal point of the liturgy. After the introductory rites, it is partially or fully removed, revealing the altar's surface for the Eucharistic celebration. The altar cloth is used in liturgy and represents purity and reverence, enhancing the sacred space.