Psalm 112:1 Praise ye the Lord. Blessed is the man that feareth the Lord, that delighteth greatly in his commandments.
Praise the Lord, for He is good, and His mercy endures forever. Because the Lord is always good and His mercy lasts forever, we can respond with constant praise on our lips and in our hearts.
Blessings in abundance comes to the person who fears (trusts, believes with a whole heart) the Lord. Out of such Spirit-given deep faith in the Lord comes a delight in His Law. Inner joy, deep and lasting, comes from enjoying God and His ways. Life is full, happy, and satisfying when we happily and eagerly keep His commands and receive forgiveness when we fail.
This is a simple recipe for a blessed and joyful life: believe God and delight yourself in His ways of love and grace. Then praise Him every day. Blessed is that man.