Chapter 18 — Part II: The Sacraments — The Holy Eucharist
Section 134. In the next place, the faithful are to understand that as he who approaches thus prepared and disposed is adorned with the most ample gifts of heavenly grace; so, on the contrary, he who approaches without this preparation not only derives from it no advantage, but even incurs the greatest misfortune and loss. It is characteristic of the best and most salutary things that, if seasonably made use of, they are productive of the greatest benefit; but if employed out of time, they prove most pernicious and destructive. It cannot, therefore, excite out surprise that the great and exalted gifts of God; when received into a soul properly disposed, are of the greatest assistance towards the attainment of salvation; while to those who receive them unworthily, they bring with them eternal death.