Favors are given in exchange of faith. Grace is poured out, which faith receives. And as from a fountain some draw a little water in little vessels, and others draw more in bigger vessels, the fountain not distinguishing between the one vessel and the other, since it is the vessels, not the fountain, that measures the water, and each draws according to his measure; and as the splendor of light enters to a greater or less degree according to the dimensions of the window, so is grace received according to the measure of our desire.