Not the kind of happy that comes with a new car or a fun time. He wants us to have the happiness that comes from deep within our heart. That can only come from knowing Him. As human beings, we all sin. The problem is, sin separates us from God.
Most people feel that separation in their heart.
They want a relationship with God. But this is not possible because we are all sinners. Through His son, Jesus Christ. No man comes to the father except through me. You can have this relationship with your Father in heaven by accepting Jesus as your savior.