Trinity Episcopal Church at 6th and Cincinnati is set for Christmas in classic understated fashion. The exterior doors to the nave are red, the color of the Holy Spirit, and garnished with simple wreaths of evergreen tied with a red bow. Last Sunday was the fourth Sunday of Advent and the time for preparation is almost over. Inside there are touches of cedar highlighted by sprigs of holly with bright red berries. The time has come to decorate the church for the festival of Christmas -- the "Christ Mass" in honor of the birth of Jesus the Christ.