Everything that we are and have comes from God. Paul says, “What have you that you did not receive?” (1 Cor 4:7). Being grateful to God, the giver of all good things, makes you happy. The greatest prayer of thanks is the “Eucharist” (“thanksgiving” in Greek) of Jesus, in which he takes bread and wine so as to offer in them to God all of creation, transformed. Whenever Christians give thanks, they are joining in Jesus’ great prayer of thanksgiving. For we, too, are transformed and redeemed by Jesus, and so from the depths of our hearts we can be grateful and tell God this in a variety of ways.