See, as Christians, we can have happiness in the things we do here because we have the joy of Christ in knowing that, once we’re done here, there is everlasting joy to look forward to. We can enjoy the things of this world because we are already satisfied by Christ. We will never be satisfied by the things of this world, but we can have a little fun doing the things that are not sinful. There’s nothing wrong with pursuing some of these empty things if you’re already full.