The whole liturgical life of the Church revolves around the Eucharistic sacrifice and the sacraments. There are seven sacraments in the Church: Baptism, Confirmation or Chrismation, Eucharist, Penance, Anointing of the Sick, Holy Orders, and Matrimony. This article will discuss what is common to the Church's seven sacraments from a doctrinal point of view. What is common to them in terms of their celebration will be presented in the second chapter, and what is distinctive about each will be the topic of the Section Two.
Source: Catechism of the Catholic Church (Vatican.va)