Book 3 of the field guide addresses the question, How do I lead all these people, anyway. They’re all so different?Sometimes, sin attacks us out of nowhere, but sometimes, it simmers in us for a long time before it takes shape. St. Gregory helps us know how to deal with sin, whether it’s obvious or insidious.St. Gregory's Summary Statement for this chapter:How those are to be admonished who sin from sudden impulse and those who sin deliberately.