Nothing can tend so much to humble us before the mercy and justice of God as the consideration of His benefits and our own sins. Let us, then, consider what He has done for us, and what we have done against Him; let us call to mind our sins in detail, and His gracious benefits in like manner, remembering that whatever there is of good in us is not ours, but His, and then we need not be afraid of vainglory or of taking complacency in ourselves.
Francis of AssisiAnd just as He appeared before the holy Apostles in true flesh, so now He has us see Him in the Sacred Bread. Looking at Him with the eyes of their flesh, they saw only His Flesh, but regarding Him with the eyes of the spirit, they believed that He was God. In like manner, as we see bread and wine with our bodily eyes, let us see and believe firmly that it is His Most Holy Body and Blood, True and Living.For in this way our Lord is ever present among those who believe in him, according to what He said: "Behold, I am with you all days even to the consummation of the world."
Francis of Assisi