Psalm 1:1-2, “Blessed is the man that walketh not in the counsel of the ungodly, nor standeth in the way of sinners, nor sitteth in the seat of the scornful. But his delight is in the law of the LORD; and in His law doth he meditate day and night.” 

There is a sense of blessing and happiness that comes from knowing that God is at work on your behalf. The more you learn and live God’s Word the happier you will be, regardless of your circumstances. That’s an important and practical principle to grasp, especially if you’re unhappy in the midst of difficult days.