Peace of conscience and peace of heart are two distinct things. A person may have peace of conscience, knowing that he is a forgiven sinner, and yet not have peace of heart. He may say to himself, I know that my sins are forgiven, but I am not happy. And why? Because in heart he has been wandering from Christ: one thing or another occupying his heart rather than Christ. And whenever a person goes vagabonding from Christ, he is sure to lose peace of heart: and the secret way to know this is that his thoughts are all turning round himself and not Christ.