One of the most important financial fitness laws is 'the law of contentment'. As long as your yearning exceeds your earnings, you will be in trouble financially. A contented heart which is at peace will give one good health. "A sound heart is a life to the body. But envy is rottenness to the bones" (Proverbs 14:30).
Be content with what you have rather than desiring what you do not have. "Better is the sight of the eyes than the wandering of desire. This also is vanity and grasping for the wind" (Ecclesiastes 6:9). Those who love money will never have enough!