Vision and purpose are critical to leading a group. You learned in the first chapter that words create realities. Every group needs goals to stay together and overcome tensions. A vision is a direction a group takes because it believes it is its mission. A vision is like a lighthouse on the shore. It indicates the direction in which the group is moving. The goals derived from it help define the time frame for how decisions will be made. This is important because there are always different ways of doing things.
Depending on the leadership structure, the pastor has a more or less powerful position. But a church or group always has one or more leaders. These are responsible for getting vision from God and translating it into goals.