Jesus’ chosen way of gifting His life of grace to us for all time.
"Christ instituted the sacraments of the new law. There are seven: Baptism, Confirmation, 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.)