in Christian life the connections between them can be vague and ill defined. For example, a pastor may preach a sermon about sin on the Third Sunday of Advent that has no discernible ties with the following week’s sermon on feeding the hungry, and both seem unrelated to the Christmas Eve sermon about the Incarnation. In short, worshipers are left to cope with apparently random messages unless the minister has helped the congregation to draw the relationships that are necessary for a coherent system