Reality is always true to itself. When you're in harmony with it, you experience bliss. As soon as you are not in harmony with it, you experience pain. This is the law of the universe; it is the way things are. Nobody gets out of this law.
Christmas is the spirit of giving without a thought of getting. It is happiness because we see joy in people. It is forgetting self and finding time for others. It is discarding the meaningless and stressing the true values