The document discusses the importance of having a heart that is right with God. It states that the heart is not just the blood pump, but the center of one's being, thinking, knowledge, emotions, and will. It then lists things that can make the heart not right with God, such as unforgiveness, worldliness, impenitence, bitterness, hardness, and fleshly lusts. Finally, it provides the solution of hearing and believing the gospel, repenting of sins, confessing faith in Jesus, being baptized, and walking faithfully with God for those not Christian. For fallen Christians, it says to repent and pray for forgiveness.