Although each section focuses on a specific Halachic principle, invariably other principles are brought up and discussed. These principles involve focal points that have applications throughout the entire Rabbinical corpus. Heller's method is to test each principle against a variety of Talmudic passages. If the concept would cause a difficulty in the passage (e.g. the concept should apply and doesn't), Heller resolves the difficult by demonstrating that for whatever reason this passage doesn't fit underneath the rubric of that particular concept (see Casuistry). In this way the exact boundaries of each principle are clearly defined, thus clarifying the exact applications of each principle.