Is he happy refers to the end of Camus’ book The Myth of Sisyphus where he concludes “One must imagine Sisyphus happy.” The oft omitted penultimate line gives the meaning Camus was going for. “The struggle itself towards the heights is enough to fill a man’s heart. One must imagine Sisyphus happy.” So one does not have to make believe Sisyphus to be happy but one must consider him so.