Our most loving Redeemer, knowing that he must leave this earth and return to his Father as soon as he would have accomplished the work for our redemption by his death, and seeing that the hour of his death was now come, he would not leave us alone in in this valley of tears, and therefore what did he do? He instituted the Most Holy Sacrament of the Eucharist in which he left us his whole self.

"No tongue," said St. Peter of Alcantare, "is able to declare the greatness of the love that Jesus bears to every soul; and therefore this Spouse,  when he would leave this earth, in order, that his absence might not cause us to forget him, left us as a memorial this Blessed Sacrament, in which he himself remains; for he would not that there should be any other pledge to keep alive our remembrance of him than he himself."

Jesus, therefore, would not be separated from us by his death; but he instituted this Sacrament of love in order to be with us even to the end of the world: "Behold, I am with you even to the consummation of the world." (Matt. 28-20) Behold him, then, as faith teaches us, behold him on so many altars shut up as in so many prisons of love, in order that he may be found by every one that seeks him. "But O lord, says St. Bernard, this does not become Thy Majesty." Jesus Christ answers, "It is enough that it becomes my love."

Many people feel great tenderness and devotion when they go to Jerusalem and visit the cave where the Incarnate Word was born, the hall where he was scourged, the hill of Calvary on which he died, and the sepulcher where he was buried; but how much greater should our tenderness be when we visit an altar on which Jesus remains in the Most Holy Sacrament! The Ven. John Avila used to say that of all sanctuaries there is not one to be found more excellent and devout than a church where Jesus is sacramentally present.

Oh, how Jesus seems continually to exclaim from the altar, "Come to Me, all you that labor and are burdened, and I will refresh you."
(Matt. 11-28) Come, he says, come, you poor; come, you infirm; come, you afflicted; come, you just and sinners, and you shall find in me a remedy for all your losses and afflictions; such is the desire of Jesus Christ; to console every one who has recourse to him, he remains day and night on our altars, that he may be found by all, and that he may bestow favors on all.

Source: St. Alphonsus De Liguori.