What benefit can a worker gain from his toil?

What does a man acquire from all his labor and from the anxiety that accompanies his toil on earth?

So I loathed all the fruit of my effort, for which I worked so hard on earth, because I must leave it behind in the hands of my successor.

Enjoy life with your beloved wife during all the days of your fleeting life that God has given you on earth during all your fleeting days; for that is your reward in life and in your burdensome work on earth.

A man who is all alone with no companion, he has no children nor siblings; yet there is no end to all his toil, and he is never satisfied with riches. He laments, “For whom am I toiling and depriving myself of pleasure?” This also is futile and a burdensome task!