How do we know that spiritual mourning is important for Christians?

Jesus states in Matthew 5:4, 'Blessed are those who mourn, for they shall be comforted.' This mourning refers to a deep, spiritual sorrow over sin and the brokenness in the world. It's not merely about feeling sad, but it reflects a transformative process where acknowledgment of one’s sinfulness leads to genuine repentance. The Apostle Paul speaks of godly sorrow that produces repentance leading to salvation (2 Corinthians 7:10). Therefore, this mourning signifies a heart aligned with God’s perspective on sin, ultimately leading to comfort in His forgiveness and the assurance of eternal life.