Sacraments are Jesus’ chosen way of gifting his life of grace to us for all time.
There are seven:
"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.)