"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 [...]
“'Parents often entrust their offspring to others to feed; but I', says He, 'do not so, I feed you with My own flesh, desiring that you all be nobly born, and holding forth to you good hopes for the future.'” Source: St. John Chrysostom, Homily 46
"The food of the soul is the Body and Blood of a God. O beautiful food! it is enough, if one thinks of it to make one lose oneself in this abyss of love." Source: St. John Vianney, The Meditations of the Curé D’Ars
"Jesus our food, incomparable glory of the Christian soul. What the Angels behold only with awe, the radiant splendour of which they cannot sustain, we make our food, we receive it into us, we become with Jesus Christ one same Body one sole Flesh." Source: St. John Vianney, The Meditations of the Curé D’Ars [...]