The author makes the case that Plato is engaged not only in thinking but also, and more important, in doing--that what we do with the knowledge is crucial, because it can determine the meaning and purpose of our own life. She saw that he was not merely engaging in rational philosophical discussion, but that the dialogues of Plato, especially up to the Republic, embody the Socratic exhortation for each individual to "take care for the soul." The dialogues therefore embody both a rational philosophy and a system of spiritual/religious principles and doctrines whose purpose is to lay out--in a public forumthe path a true disciple needs to take to have a personal and direct experience of spiritual illumination, or enlightenment.