The whole liturgical life of the Church revolves around the Eucharistic sacrifice and the sacraments. Sacraments are "powers that comes forth" from the Body of Christ, which is ever-living and life-giving. They are actions of the Holy Spirit at work in his Body, the Church. They are "the masterworks of God" in the new and everlasting covenant.
Catechism of the Catholic Church 1113 & 1116
There are seven Sacraments:
Annointing of the Sick