Catherine Marshall tells in one of her books about how devastated she was when, following a routine physical examination, she was informed that she had tuberculosis. She was not mentally prepared for that. No one ever is. She was ordered to bed 24 hours a day indefinitely. Fifteen months later, she had gained 15 pounds. After a year and a half in bed, there was no noticeable progress. It was at this point that tormenting thoughts began inundating her mind. Had she committed some unforgivable sin at sometime in her life? Had she wronged someone and needed to…