This article discusses the epistemic methods on which a person relies in extracting his various knowledge, which are the rational, experimental, textual, and customary method. It has been shown that only the rational approach – which makes the rational force a ruler and directs to benefit from all other epistemic approaches, each according to its scope – is what constitutes the view. The correct and comprehensive approach to the human being, although the rest of the curricula produces a variety of knowledge, yet they cannot constitute a correct and complete world view. This is because the rational approach relies on elementary intuitions to arrive at the theory with a certain conclusion. Also, because it is based on a structure and form that is productive in inference. Although this approach is the most difficult way, it is the safest way to reach the truth, and by relying on it, a person can access knowledge of metaphysical matters, this approach is not for specific people, rather, all of humanity can benefit from this approach to obtain a realistic and comprehensive world view.