"O God, present in this Most Holy Sacrament, O Bread of angels. O heavenly food, I love Thee; but Thou art not, neither am I, satisfied with my love. I love Thee; but I love Thee too little. Do Thou, my Jesus, make known to me the beauty, the immense goodness which I love: make [...]
"The Lord Jesus, who became for us the food of truth and love, speaks of the gift of his life and assures us that 'if any one eats of this bread, he will live for ever' (Jn 6:51). This 'eternal life' begins in us even now, thanks to the transformation effected in us by the [...]
"But the broken minds and tortured hearts testify to the fact that nothing can satisfy the soul hunger of man, except a nourishment suited to his soul and its aspirations for the perfect… Man's soul being spiritual demands a spiritual food. In the order of grace, this divine food is the Eucharist, or the communion [...]
"Man has a soul, as well as a body. The spiritual part of him demands a food which is above the material and the physical and the biological." Source: Ven. Fulton Sheen, These are the Sacraments
"The refreshment of spiritual food and the unity denoted by the species of the bread and wine are to be had in the present life, although imperfectly, but perfectly in the state of glory. Hence Augustine says on the words, 'My flesh is meat indeed' (Jn. 6:56)." Source: St. Thomas Aquinas, Summa Theologica [...]
"The effect of this sacrament is considered from the way in which this sacrament is given; for it is given by way of food and drink. And therefore this sacrament does for the spiritual life all that material food does for the bodily life, namely, by sustaining, giving increase, restoring, and giving delight." Source: [...]
"For there is this difference between food of the body and that of the soul, that whereas the former is changed into our substance, the latter changes us into its own; so that St. Augustine makes Christ Himself say: 'You shall not change Me into yourself as you do the food of your body, but [...]
"O my soul, how great thou art since only a God can satisfy thee! The food of the soul is the Body and Blood of a God! What beautiful nourishment! The soul can only feed on a God! No other than God can suffice. Only God can satisfy its hunger. It needs God absolutely." [...]
"For when He gave them bread, and filled their bellies, they said that He was a Prophet, and sought to make Him a King: but when He taught them concerning spiritual food, concerning eternal life, when He led them away from objects of sense, and spoke to them of a resurrection, and raised their thoughts [...]