5 Trust in the Lord with all your heart, and do not lean on your own understanding. 6 In all your ways acknowledge him, and he will make straight your paths.7 Be not wise in your own eyes; fear the Lord, and turn away from evil.8 It will be healing to your flesh and refreshment to your bones. Proverbs 3:5-8
Following our heart can be good or bad. If our hearts are given to Christ, then we are filled with His spirit. If our hearts are not given to Christ, then we are filled with selfishness and pride.