Why is grace essential in understanding spiritual sight?

Grace, defined as God's unmerited favor, is the foundation of our understanding of spiritual sight. Without grace, we remain in darkness, oblivious to our spiritual condition and the necessity of a savior. The sermon emphasizes that it is through God's grace that we are called and enlightened. Romans 5:8 illustrates this grace, showing that while we were yet sinners, Christ died for us. This remarkable act of grace enables us to recognize our lost state and turns our hearts toward Christ, allowing us to declare, 'Whereas I was blind, now I see.' The act of believing is itself a gift of grace, demonstrating that true faith is never a work of man but a work of God.