From a sermon I recently preached:
"Happiness is the result of the fulfillment and the reward that comes from Christ. Jesus, God's indescribable gift of happiness, has a way of changing priorities and the way we look at things. There's a huge difference between viewing Christianity as a religion of rituals and viewing it as a relationship with Christ. For one is based upon guilt and restriction, while the other is built upon love and freedom. Christianity isn't a license to do wrong, it's the liberty to do what is right and believe it or not, the Christmas story reminds us that when Christ came to earth and took the form of humanity, he showed us that he can relate to our problems. It makes us feel good that we have someone who can understand the things we go through."