Christ and the Sacraments
Christ is man’s way back to God, through His Incarnation, all the deeds and sufferings of His life, and the sacraments that He instituted to give us a share in that life. The third section of the Summa Theologiae charts out life in Christ, according to St. Thomas Aquinas.
78. The Sacraments
80. The Eucharist
84. Marriage
85. Holy Orders
86. The Last Things