“The sleep of the laborer is pleasant – whether he eats little or much – but the wealth of the rich will not allow him to sleep.”
The Teacher (author of the book) knows that in some ways wealth brings advantages, but in other ways it causes many worries. Rather than providing security, wealth begets a bevy of struggles.
Jesus said wealth makes it hard to enter his Kingdom, because people make it their god. The true God does not brook rivals. Has desire for and pursuit of wealth damaged my soul?