When I see someone sweating at his job with a smile on his face I think that he is by nature a hard worker, that he loves working.
But perhaps his ulterior motive for working so hard is to afford a vacation, to take a week off work, and that's why he's smiling.
The same goes for written or spoken words. If you're not on top of them you take them on face value and have no clue what's behind them.
That's why God created the world with words, so that you'll never know why! Unless your soul resonates on the vibes of His inner desire.