We all celebrate Christmas on the same day, but we don't all come to Christmas the same way. But why do we celebrate Christmas at all? Whether or not we realize it, Christmas isn't simply sentimentality about a baby in a manger. On the contrary, Christmas - the coming of Christ - is an essential part of the gospel. When you celebrate Christmas this year, amid all the gatherings, lights, and presents, don't forget its central theme: the gospel.