“The eye can only see, and the hand can only touch, the white substance of the bread, and the taste can only taste the savor of the bread, so that the outward bodily senses are deceived… How is the Blessed Sacrament to be truly tasted, seen, and touched? With the sentiment of the soul. With what eye is It to be seen? With the eye of faith. This eye sees in that whiteness of the bread God-made-man, the Divine nature united with the human nature, the Body, the Soul, and the Blood of Christ…” – Saint Catherine of Siena, Treatise on Prayer.