The tabernacle serves as a place to reserve the consecrated hosts, which are considered to be the Body of Christ, following the celebration of the Eucharist. The Eucharist, also known as Communion, is a central rite in the Catholic Church and the consecrated hosts are reserved in the tabernacle as a sign of reverence and respect for the Real Presence of Jesus Christ in the Eucharist.
The tabernacle should be located at the center of the altar and ornately decorated to symbolize the importance of the Eucharist in our faith. The tabernacle is also a focus of adoration of the faithful who may visit the church for quiet prayer and reflection before the reserved Blessed Sacrament.
In addition to serving as a place to reserve the consecrated hosts, the tabernacle is also used for the celebration of the Rite of Exposition and Benediction, during which the Blessed Sacrament is displayed in the monstrance for the purpose of adoration by the faithful.
A tabernacle to hold the Body of Christ is required for worship facilities, even if the building or room is rented. In the latter case, the tabernacle should be mobile and moved with the greatest of respect.