St. Francis de Sales: “To assist the souls in Purgatory is to perform the most excellent of the works of mercy, or rather it is to practice in a most sublime manner all the works of mercy together: it is to visit the sick; it is to give drink to those who thirst for the vision of God; it is to feed the hungry, to ransomprisoners, to clothe the naked, to procure for poor exiles the hospitality of the heavenly Jerusalem; it is to comfort the afflicted, to instruct the ignorant — in fine, to practice all the works of mercy in one.”