The ideal of perfection is to "live for God in Christ Jesus": Viventes Deo in Christo Jesu. We cannot attain it in a day; holiness, ingrafted in us at baptism, is only developed little by little, by successive stages. Let us try to act in such a way that each Easter, each day of this blessed season which extends from the Resurrection to Pentecost, may produce within us a more complete death to sin, to the creature, and a more vigorous and more abundant increase of the life of Christ.
Christ must reign in our hearts, and all within us must be subject to Him. He came in us as King on the day of our baptism, but sin disputes this dominion with Him. When we destroy sin, infidelities, attachment to the creature; when we live by faith in Him, in His word, in His merits; when we seek to please Him in all things, then Christ is Master, then He reigns within us; as He reigns in the bosom of the Father, so He lives in us. He can say of us to the Father "Behold this soul: I live and reign in her, O Father, that Thy name may be hallowed."
—Dom Columba Marmion