"So that you receive the whole Divine Essence in that most sweet Sacrament concealed under the whiteness of bread; for as the sun cannot be divided into light, heat, and color, the whole of God and the whole of man cannot be separated under the white mantle of the host. For even if the host were to be divided into a million particles...in each particle should I be present, whole God and whole Man. When You break a mirror the reflection to be seen in it is not to be broken; similarly, when the host is divided God and man are not divided but remain in each particle. Nor is the Sacrament diminished in itself" (The Dialogue of Saint Catherine of Siena)

"If thou hast a light [e.g. a candle or other flame], and the whole world should come to thee in order to take light from it--the light itself does not diminish--and yet each person has it all. It is true that every one participates more or less in this light, according to the substance into which each one receives the fire....Suppose that there are many who bring their candles, one weighing an ounce, other two or six ounces, or a pound, or even more, and light them in the flame, in each candle, whether large or small, is the whole light, that is, the heat, the color, and the flame; nevertheless thou wouldst judge that he whose candle weighs an ounce has less of the light than he whose candle weighs a pound. Now the same thing happens to those who receive this Sacrament. Each one carries his own candle, that is the hole desire, with which he receives this Sacrament, which of itself [that is, the desire] is without light, and lights it by receiving this Sacrament."