The Chrism Mass took place on Tuesday, March 23rd at the Cathedral of the Immaculate Heart of Mary.
The Mass of Chrism is properly concelebrated by the bishop with his clergy. It is a sign of the unity and communion of the priests with their bishop. At the Chrism Mass, the blessings of the Oil of the Sick, the blessing of the Oil of Catechumens, and the consecration of the Chrism all take place.
Oil of the Sick - The Bishop prays that in God's blessing of the Oil of the Sick, "everyone anointed with this oil as a safeguard for body, soul, and spirit may be freed from all pain, all infirmity, and all sickness"
Oil of Catechumens - This is the second oil to be blessed by the Bishop. The prayer of blessing asks for three effects on "the catechumens who will be anointed with it": that they "may understand more deeply the Gospel of your Christ… may undertake with a generous heart the labors of the Christian life, and… may rejoice to be born anew and to live in your Church"
Chrism - It's part of the Baptismal rite and used for the Sacrament of Holy Orders.