The "supreme good" and its attainment -- that is happiness. And joy is: response to happiness.
Josef Pieper... each gratification points to the ultimate one, and that all happiness has some connection with eternal beatitude. Some connection, if only this: that every fulfillment this side of Heaven instantly reveals its inadequacy. It is immediately evident that such satisfactions are not enough; they are not what we have really sought; they cannot really satisfy us at all.
Josef PieperThe brave man uses wrath for his own act, above all in attack, 'for it is peculiar to wrath to pounce upon evil. Thus fortitude and wrath work directly upon each other.
Josef Pieper