What is the main point

In all the text, Epictetus seems primarily concerned that his readers accept reality. He begins the book with a statement about the power of the individual over certain spheres and utter lack of power in others. Lest someone try and take control over something outside of their power, Arrian warns that all attention must be devoted to the appropriate spheres. By focusing solely on the mind, the mental areas subject to oneself, the individual can perfect themselves to be an observer of all the rest. Things like reputation and relationships are subject to outside forces which the individual cannot truly control. In response to these often blurred lines of authority, Arrian urges his readers continually to observe external reality as accurately as possible. He wants the reader to be able to describe with perfect precision any circumstance to which they have been subjected, without rendering judgement. Only through the commitment to this acceptance of reality can the individual free himself or herself completely.