Roman Catechism 18.123

Chapter 18 — Part II: The Sacraments — The Holy Eucharist

Section 123. The Grace Of The Eucharist Invigorates And Delights — Again, just as the body is not only supported but also increased by natural food, from which the taste every day derives new relish and pleasure; so also is the soul not only sustained but invigorated by feasting on the food of the Eucharist, which gives to the spirit an increasing zest for heavenly things. Most truly and fitly therefore do we say that grace is imparted by this Sacrament, for it may be justly compared to the manna having in it the sweetness of every taste.