the “Little Sermons on the Catechism” by Cardinal Corsi.
XXI. The Effects of Holy Communion
As regards our passions, that other source of our weakness, it is certain that if the holy Eucharist does not wholly deliver us from them, it at least alleviates their violence and subdues them. Hence St. Bernard said to the faithful: “If some of you no longer experience the violent emotions of anger, of envy, of intemperance, ascribe it to the Body and Blood of Jesus Christ which you have received in holy Communion.” For the sensual passion in particular, which is by far the most violent and most dangerous of our enemies, this Sacrament is a powerful bridle. For it is specially ordained to heal the mortal wounds inflicted by the evils of concupiscence, and to moderate its fire. The immaculate Flesh of Christ imparts its purity to ours; His pure Blood purifies our blood which has been corrupted by sin.
Finally, the holy Eucharist purifies us from our daily faults, whereby are not understood grievous sins, which, as a rule, are only wiped out through the Sacrament of Penance, but those lesser faults into which we fall daily. The Council of Trent assures us that the holy Eucharist has the power to efface the same. So, therefore, the holy Eucharist preserves in us the spiritual life by removing or suppressing everything that tends to destroy it.
Furthermore, corporal food not only preserves the life of the body, but fortifies, strengthens, and develops it, so the Eucharistic Bread not only preserves the soul from death, but causes it to acquire virtue upon virtue and to increase in holiness. Hence, in holy Scripture, it is prefigured in that mysterious bread which the Angel presented to Elias in the wilderness. This bread gave to the Prophet such extraordinary power that he, without partaking of any other food, journeyed for forty days and forty nights unto the summit of Mount Horeb. What an impressive picture of the strength with which the holy Eucharist inspires us to walk upon the path of the Lord, and upon the difficult road of our pilgrimage, unto the Kingdom of Heaven.
