The Mass is a gathering of representatives from every parish in the diocese at which time the holy oils are blessed. They include the oil of catechumens for adult catechumens and infants in preparation for baptism, the oil of the sick and the oil of Chrism for post-baptismal anointing, confirmation, the ordination of priests and the consecration of altars. The Sacred Chrism can only be consecrated by the bishop. Since it is not possible for the bishop to baptize and confirm everyone in his diocese, he is symbolically present in the Chrism used by priests and deacons. Containers of the holy oils are given to the representatives of each parish at the conclusion of the celebration.
The Chrism Mass has also become a special Mass at which time the priests who serve with the bishop renew their commitment to join with him in the ministry of the Gospel.