He is in need of his nerves for the function of his nervous system.

He is in need of his nerves for the function of his nervous system. However, it is the intellect that guides the senses and differentiates for them from accuracy and mistakes. The intellect has a limited perception and it is prone to mistakes and desires. Thus, it is in need of a leadership of a complete intellect that encompasses the illness and cure, who covers the factors of perfection and deficiency.

Furthermore, he must be protected from mistakes and desires, so that through his leadership the guidance of human intellect is guaranteed. The path of understanding this perfect human, who is himself protected from mistakes and safeguards himself from mistake, is through the announcement of Allah, the Exalted. As a result, the concept of the reality of divine leadership never separates from the verification that the appointment of the divine leader must be from Allah, the Exalted.

Third Precept The purpose of divine leadership is to protect the divine laws, explain them and implement them. Indeed, the proof which leads to the necessity of infallibility in a prophet who delivers the religion and implements it, leads to the necessity of infallibility of his successor who protects, explains and implements the Book and the Practice [ Sunnah ].

Just as error and desire in a prophet nullify the purpose of his sending, likewise, error and desire in the protector, explainer and implementer would cause the people to go astray and will contradict the purpose of his sending. As it is impossible for the people to know the infallible, he must be introduced by Allah, the Exalted, and His Messenger.

Arbitration of the Qur’an For précis, we will mention only three verses: First Verse And We made of them Imams to guide by Our command when they were patient, and they were certain of Our communications. [^5] Every tree is recognised through its roots, branches, seeds and fruits. In this verse of the Noble Qur’an, the root and stem of the pure tree of divine leadership is mentioned.

Therefore, the root of divine leadership is the high rank of intellectual perfection, which is the certainty in the constitutional and legislative signs of Allah, the Glorified, which is derived from the plural tense in the verse. The branches of divine leadership are the high ranks of intentional perfection, which are patience in holding back from every disliked by Allah and performing every liked by Allah.