What is the significance of total depravity in understanding salvation?

Total depravity means that every part of human nature is affected by sin, leaving people unable to come to God without divine intervention. As Paul explains, humanity's natural inclination is towards self-righteousness, which is a firm stumbling block against the gospel. Understanding total depravity is crucial because it reveals that salvation is entirely a work of God's grace. Only through the Holy Spirit can individuals be drawn to recognize their need for Christ and accept Him as their only righteousness and redeemer.