And there were in the same country shepherds abiding in the field, keeping watch over their flocks by night, and lo the angel of the Lord came upon them and the glory of the Lord shone round about them, and they were so afraid, and the angel said unto them, "Fear not, for behold, I bring you tidings of great joy, which shall be to all people. For unto you is born this day in the city of David, a savior, tis Christ the Lord. And this shall be a sign unto you. You shall find the babe wrapped in swaddling clothes lying in a manger."
And suddenly there was with the angel a multitude of the heavenly hosts, praising God and saying, "Glory to God in the highest, and on earth peace, good will toward men."
That's what Christmas is all about, Charlie Brown.