"Christ acts through the sacraments he instituted to communicate his grace. The sacraments are perceptible signs accessible to our human nature. By the action of Christ and the power of the Holy Spirit they make present efficaciously the grace that they signify."
--- Catechism of the Catholic Church, 1084
Baptism
Eucharist
Reconciliation
Confirmation
Matrimony
Holy Orders
Anointing of the Sick