It was all directed to his faith, his inner life, his heart experience, and what Christ was doing in his heart. The good news of the objective gospel has brought relief to both body and mind of many prisoners of a hopelessly subjective religion. This overwhelming preoccupation with the inner experience is self-defeating. It is unhealthy-spiritually, mentally and physically. If ministers of religion do not preach the gospel of God's work for us in Christ and make that the foundation of faith, they turn people into spiritual neurotics.
True faith is a way of health for the whole man because it goes out of itself to Another.
To live by faith is to get your eyes off yourself and to live by focusing on a new center. Of course, one cannot conclude that a person who suffers mental illness does not believe the gospel. There are many good Christians who fully understand the gospel and who take every possible care with their health but yet are plagued with nervous disorders. The effects of heredity and environment cannot be entirely overcome. Early childhood experiences, social factors, and hormonal and other medical conditions quite beyond our control may be responsible.