  The third and final prerequisite identifies exactly what the instruction and training mentioned in the philosopher's speech consists in, if it is to culminate in the experience of prophecy. Here, abstract principles, general guidelines, and ad hoc judgments, no matter how intelligent or astute, do not suffice to produce the desired result. Only adherence to the specific commandments and prohibitions embodied in the Written and Oral Law from God can do so. That is because the specifics in their totality and due proportion constitute a regimen that imparts to human souls both the conduct and the disposition of the angels. Indeed, Halevi claims that perseverance in performing acts mandated by the Law raises one to the level of revelation, which is the human level closest to the divine. (K 1: 87, 98; 2:48, 50; 3: 7, 11, 53; 4:19; 5:20, 4th premise)