Chapter 18 — Part II: The Sacraments — The Holy Eucharist
Section 66. Three Mysteries Of The Eucharist — We must now return to an explanation of those truths concerning the Eucharist about which the faithful are on no account to be left in ignorance. Pastors, aware of the warning of the Apostle that those who discern not the body of the Lord are guilty of a most grave crime, should first of all impress on the minds of the faithful the necessity of detaching, as much as possible, their mind and understanding from the dominion of the senses; for if they believe that this Sacrament contains only what the senses disclose, they will of necessity fall into enormous impiety. Consulting the sight, the touch, the smell, the taste and finding nothing but the appearances of bread and wine, they will naturally judge that this Sacrament contains nothing more than bread and wine. Their minds, therefore, are as much as possible to be withdrawn from subjection to the senses and excited to the contemplation of the stupendous might and power of God.