Thus, what they did was made fair seeming to the unbelievers.

Thus, what they did was made fair seeming to the unbelievers." Holy Qur'an (6:122) So, the Qur'anic capacity, amplitude and comprehensiveness that is found in its text, concept, and wide variety of the matters it addresses is considered an abundant source of ideas and a basic ingredient in making, directing and evaluating human knowledge to direct it to the straight path.

Therefore, the relation between the Qur'an and Islamic Thought can be summed up in the following two fundamental aspects: The Holy Qur'an is a fountainhead and source of Islamic civilization, culture and thought in view of the capacity and comprehensiveness that it contains along with its scientific, cultural and ideological matter. Therefore, it can lay down the general principles and rules, as well as, the total framework of the Islamic Thought and knowledge; equally, the whole way of life.

The revelation addressed the wide horizons of the Qur'an and its general treatment and comprehension of the subjects by including all rules of Islamic legislation, idea and knowledge.

The Holy Qur'an says: "...and We have revealed the Book to you explaining, clearly, everything, and guidance, and mercy,..." Holy Qur'an(16:89) "And certainly We have explained, for men, in this Qur'an, every kind of similitude:..." Holy Qur'an (17:89) Imam Ali bin Hussein (upon them be peace) talked about the abundance of the Qur'anic contents and richness of its scripture by saying: "Verses of the Holy Qur'an are like vaults; whenever they are opened one must look inside them."(12) The Holy Qur'an is described by Imam Ali (a.s.), thus: "And, then, the Qur'an has been revealed as a light; its lamps will never extinguish; it is a shining lamp of which its flames will never go out and like an ocean its bottom will not be reached and a method which errs not its way and a ray that will not darken its light and distinction; its evidence will not be null and void, as well as, it is an eloquence and its pillars will not be torn down."(13) It was related that Imam Ali Ibn Musa al-Rida (upon whom be peace) said: "And, also, it has been related that Imam al-Sadiq (a.s.) said: `The Qur'an is ever-living and will never die.