Why is the concept of being 'blind' important for Christians?

The concept of spiritual blindness is pivotal in understanding the human condition apart from Christ. In John 9, the healing of a blind man illustrates how all people are born into spiritual darkness, unable to comprehend God's truth. Without the light of Christ, we are groping in darkness, completely unaware of our need for salvation. This metaphor serves to remind believers of the transformative power of Christ, who opens the eyes of the spiritually blind, enabling them to see and understand the gospel. Ephesians 2:1-5 further emphasizes that we were dead in our sins before God made us alive in Christ, showcasing the profound change that occurs when God imparts spiritual sight to His children.