The liturgical life of the Catholic Church revolves
around the Eucharistic sacrifice and the sacraments.
Christ instituted the sacraments of the new law. There are seven: Baptism, Confirmation (or Chrismation), the Eucharist, Penance, the Anointing of the Sick, Holy Orders and Matrimony. The seven sacraments touch all the stages and all the important moments of Christian life: they give birth and increase, healing and mission to the Christian's life of faith. There is thus a certain resemblance between the stages of natural life and the stages of the spiritual life. - Catechism of the Catholic Church, 1210
The sacraments of Christian initiation lay the foundations of every Christian life. The faithful are born anew by Baptism, strengthened by the sacrament of Confirmation, and receive in the Eucharist the food of eternal life.
The Lord Jesus Christ, physician of our souls and bodies, who forgave the sins of the paralytic and restored him to bodily health, has willed that his Church continue, in the power of the Holy Spirit, his work of healing and salvation, even among her own members.
While the other sacraments are celebrated and received in the communion of the church, they are directed toward the salvation in Christ of the individual Catholic. Matrimony and holy orders enable individuals to direct their lives in a sacramental way for the salvation of others. Through service to others, they build up the Body of Christ. They are themselves being saved in the process, by their participation in the saving mission of Christ.