We often withhold forgiveness for fear of letting the wrongdoer off the hook. We are a society of right and wrong, checks and balances, justice and punishment. But when we fully grasp God's mercy toward us, forgiveness, while still difficult, at least becomes possible. And so does happiness. "Be kind to one another, tenderhearted, forgiving one another, even as God in Christ forgave you" (Ephesians 4:32). When you understand the forgiveness of Christ, you can forgive yourself and forgive others, and stop carrying the burden of anger that keeps you from experiencing happiness.