Proverbs 15:13 A merry heart maketh a cheerful countenance: but by sorrow of the heart the spirit is broken.
14 The heart of him that hath understanding seeketh knowledge: but the mouth of fools feedeth on foolishness.
15 All the days of the afflicted are evil: but he that is of a merry heart hath a continual feast.
These three verses speak of a condition of the heart. First lets look at the sorrowful part of the heart. It is a broken heart and not only affects the outward look but the inward spirit in a negative way as well. Then the foolish heart believes every foolish thing and feeds on falsehoods. Finally we see those that are afflicted to the point of depression never looking for anything good but only at the dark side. This is a terrible way to live .
If we have a merry heart people see it in our eyes and in our smile and they know we have something special. Because our hearts are right with God we seek to gain more understanding and knowledge. Finally a merry heart sees everything with a positive attitude. Life to a joyous person is always a peaceful lifestyle. The joyous inward condition of a wise mans heart is a perpetual feast of God’s blessings. Real happiness is always determined by the state of the heart.