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Perfect man is the conceived and genetic Koran, by whom the truth of Koran can be revealed perfectly. Infallibles lie among perfect men and Imam Ali, as one evident example is the most deserving one for this revelation.
In Nahj Albalagheh, Koran has been described a book demonstrating the system of agent and that of optimal in the universe. Accordingly, universe is the objective manifestation of God; just as, cognition of God which is his manifestation in a manner scientific.
God’s ultimate manifestation is His divine essence. According to Nahj Albalagheh, there are some points arriving at clarifying Koran, which are worthy of attention, one example of which is Koran’s ability of speech while apparently it seems to be silent, just like the apparent silence of universe, representing the genetic Koran. Hearing this speech is on The condition that we ponder and contemplate Koran and the universe profoundly as well as mooting meticulous questions in a manner scientific and objective.
To explain Koran by the means of Koran itself is the best way of exegesis; nevertheless, referring to infallibles’ tradition is a supplementary means for the commentary, given Koran repeatedly references to them