Verse 23 sums it up for me, Above all else, guard your heart, for it is the wellspring of life. Our heart dictates how we live because we always find time to do what we enjoy. We need to guard our hearts to make sure we only allow things that are pleasing to God. We need to keep our eyes, heart, and mind focused directly at our goal of having a relationship with God and not allow ourselves to be distracted by other things in our lives. God want our full attention and we need to give it.