The bread that you see on the altar is the Body of Christ as soon as it is sanctified by God's word. The chalice, or better what is contained in the chalice, is the Blood of Christ as soon as it is sanctified by God's word
For great are you, Lord, and you look kindly on what is humble, but the lofty-minded you regard from afar. Only to those whose hearts are crushed do you draw close. You will not let yourself be found by the proud, nor even by those who in their inquisitive skill count stars or grains of sand, or measure the expanses of heaven, or trace the paths of the planets.
For if God is man's chief good, which you cannot deny, it clearly follows, since to seek the chief good is to live well, that to live well is nothing else but to love God with all the heart, with all the soul, with all the mind.
Let us leave a little room for reflection in our lives, room too for silence. Let us look within ourselves and see whether there is some delightful hidden place inside where we can be free of noise and argument. Let us hear the Word of God in stillness and perhaps we will then come to understand it.
God does not give heed to the ambitiousness of our prayers, because he is always ready to give to us his light, not a visible light but an intellectual and spiritual one; but we are not always ready to receive it when we turn aside and down to other things out of a desire for temporal things.