What does the Bible say about leanness of soul?

Leanness of soul, as mentioned in Psalm 106:15, refers to a spiritual condition where one's soul feels empty and unsatisfied. This is often the result of God's judgment upon those who pursue their own desires rather than His counsel. The Israelites, for example, wanted meat to satisfy their fleshly cravings, and God granted their request, but as a consequence, they experienced leanness in their souls. This leanness acts as a form of chastening, helping believers realize their need for spiritual nourishment found solely in communion with God.