Every work that effects our union with God in a holy fellowship is a true sacrifice; every work, that is, which is referred to that final end, that ultimate good, by which we are able to be in the true sense happy. As a consequence even that mercy by which aid is given to man is not a sacrifice unless it is done for the sake of God. Sacrifice, though performed or offered by man, is something divine; that is why the ancient Latins gave it this name of “sacrifice,” of something sacred. Man himself, consecrated in the name of God and vowed to God, is therefore a sacrifice insofar as he dies to the world in order to live for God. This too is part of mercy, the mercy that each one has for himself. Scripture tells us: Have mercy on your soul by pleasing God.