The joy of being a Christian is substantial, making life absolutely worth living. I'll just mention the basic freedom, peace, and joy you experience from knowing Christ. Even suffering for his sake becomes a joy. When you attain union with God, that joy reaches a maximum. But wait, the present joy is nothing compared to the joy we'll experience in heaven! Up there, we become totally freely from sin, the worse cause of unhappiness here on earth. Without our present physical body, we'll be free from all physical burdens and able to soar in total freedom. Most of all, we'll be enjoying fully the glory of the Most Holy Trinity and communion with all the saints. We'll be more alive than ever, fully aware of the joy impossible for us to comprehend on earth. I for one certainly wouldn't want to miss all that.