You will notice that during Paschal time, the Church frequently speaks to us of life, not only because Christ, by His Resurrection, has vanquished death, but above all because He has reopened to souls the fountains of eternal life.
It is in Christ that we find this life: Ego sum vita [I am the life] (Jn. XIV, 6).
This is why, likewise frequently, the Church makes us read over again on these blessed days, the parable of the Vine: “I the vine,” says Jesus, “you are the branches; abide in Me and I in you, for without Me you can do nothing” (Jn. XV, 4-5).
We must abide in Christ and He in us, in order that we may bear much fruit (Cf. Jn. 5).
How is this accomplished?
By His grace, by the faith that we have in Him, and by the virtues whereof He is the Exemplar and which we imitate.
When, having renounced sin, we die to ourselves, as the grain of wheat dies in the earth before producing fruitful ears (Jn. XII, 25),
when we no longer act save under the inspiration of the Holy Spirit and in conformity with the precepts and maxims of the Gospel of Jesus,
then it is Christ’s divine life that blossoms forth in our souls, it is Christ Who lives in us: Vivo ego, jam non ego, vivit vero in me Christus [I live, yet it is not I who live, but Christ Who lives in me] (Gal. II, 20).
Such is the ideal of perfection: Viventes Deo in Christo Jesu [living unto to God in Christ Jesus].
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.
Since the day of Christ’s triumph, He gloriously lives and reigns in God, in the bosom of the Father: Vivit et regnat Deus [He lives and reigns as God].
Christ only lives where He reigns, and He lives in us in the same degree as He reigns in our soul.
He is King as He is High Priest. When Pilate asked Him if He was a King, Our Lord answered Him: Tu dicis quia rex sum ego [you say that I am a King] (Jn. XVIII, 37); “I am, but My kingdom is not of this world.”
Columba Marmion (1858-1923): Christ in His Mysteries, 15, 4.