The verse contrasts the peaceful rest of a hardworking person with the restless nights of the wealthy. It suggests that those who engage in honest, diligent work experience a deep sense of satisfaction and contentment, which allows them to enjoy restful sleep. This is true whether they have plenty to eat or just enough, indicating that the quality of rest is not dependent on material abundance.
On the other hand, those who are rich may find themselves plagued by worries and responsibilities that come with managing their wealth. Their abundance can lead to anxiety, preventing them from enjoying the simple pleasure of a good night's sleep. This serves as a reminder that wealth does not necessarily equate to happiness or peace. Instead, it encourages us to find joy in our work and to seek balance in our lives, valuing the intangible rewards of hard work and integrity over material possessions.