This philosophical postulate that the end of all being is the happiness of man has been sort-of covered over with evangelical terms and biblical doctrine - until God reigns in heaven for the happiness of man, Jesus Christ was incarnate for the happiness of man, all the angels exist and. . . everything is for the happiness of man - and I submit to you that this is unchristian.
It's just that a lot of songs that are popular right now, they don't have any meaning