The liturgical life of the Catholic Church revolves around the Eucharistic sacrifice and the sacraments.

There are 7 Sacraments in the Church:
Baptism
Reconciliation
Eucharist
Confirmation
Matrimony
Anointing of the Sick
Holy Orders

The purpose of the sacraments is to make people holy, to build up the body of Christ, and finally, to give worship to God; but being signs, they also serve a teaching function. They not only presuppose faith, but by words and object, they also nourish, strengthen, and express it; that is why they are called "sacraments of faith."