Fasting works on our hearts just like meat tenderizer does. It changes what was hard and tough to soft and tender.
Have you heard the voice of God lately? Is your speech brash? Are you less patient with those around you? Do you need a “heart of flesh” again? Then fast, and live in Ezekiel 36:26
I will give you a new heart and put a new spirit in you; I will remove from you your heart of stone and give you a heart of flesh.