Well, “enforce” is a word and “inforce” isn’t.

great question madhavi:) yOU know though these words sound synonimous but still there lies a “deep” difference !! Happiness can be found of things which may not even be beneficial to our spiritual or psychological aspect like we may go out & have our favourite dish & clothes etc., we would feel happy. But satisfaction comes from a kind of achievent, if we get good grades in studies we would get a positive feeling that says “hard word paid off” now thats more beneficial isn’t it ;p[ Now peace…. I think it depends on what attitude we adopt towads the “activities” we do for “happiness” or either “satisfaction”, peace actually exist in our self, it just has to be found by us. A person of ignorance might feel peace while a hard worker could be strresed. It can be even oposite to that . So peace needs to found by us.