St. John is the final witness, prophet to announce the Messias. St. John, like Our Lady, is not holy because of the extraordinary graces given but because he heard the Word of God and kept it. What is our mission? What will make us holy? What will give us peace?
How Our Lord keeps His promise not to leave us orphans: in the Eucharist (admonition to the first communicants); and in His Church. Through the Church we have the Priesthood; Council of Trent proclaims Apostolic Succession; Intact Deposit of Faith.
Man is made to live for eternal happiness, not in this life but rather in the life Our Lord prepared for us in Heaven. We should begin that life in this life by love (not fear) of neighbors, who are the possessions of God. How we should bear the sufferings of this life.
Baptism, Confirmation, Priesthood conform souls to Christ. He desires us and the Eucharist is how He brings us to Himself. The Eucharist is the source and summit of all the sacraments. We become part of the Infinite. What the soul is to the body, grace is to the soul. The importance of daily Mass and frequent reception of Communion.