How do we know that God's grace prepares our hearts for the gospel?

The parable of the sower emphasizes that the condition of the soil symbolizes the hearts of individuals who hear the gospel. In verse 20, it’s noted that only the good ground, which has been prepared by God's grace, produces fruit. This demonstrates the working of the Holy Spirit in individuals, breaking up the fallow ground of their hearts to make them receptive to the incorruptible seed of the Word of God. Without this sovereign grace, people remain unresponsive, showcasing the importance of God’s initiation in the process of salvation.