The Qur’ān is:
the pre-eternal translator of these creatures; the sempiternal interpreter of the various tongues constantly reciting the verses of creation; the commentator of the great book of the Universe; the discloser of the treasures of the Divine Names concealed in the heavens and on the earth; the key to the verities hidden beneath the lines of events; the tongue of the Unseen World in the Manifest World; the treasury of the favors of the pre-eternal and Divinely addresses, and the Most Merciful and perpetual attentions; the foundation, plan, and sun of the spiritual world of Islam, and the sacred map of the worlds of the hereafter; the distinct expounder, lucid exposition, articulate proof, and clear translator of the Divine Essence, attributes, Names and deeds; it is the instructor of the world of humanity; the water and light of Islam; the true wisdom of mankind; and the true guide and leader urging humanity to prosperity and happiness. It is both a book of law and wisdom, and a book of prayer and worship, and a book of command and appeal, and a book of invocation and thought – it is a book for all spiritual needs; and it is a sacred library offering books and treaties fitting for the various ways and different paths of all the saints and veracious ones, the wise and the learned, which suits the illuminations of each way and enlightens it, and is appropriate for the course of each path and depicts it.
Also, the Qur’ān is the founder of this mighty lucid Religion, and the basis of the world of Islam. It has changed human social life, and is the answer to the repeated questions of its various classes. Repetition is mandatory for a founder to establish things; it is necessary to corroborate them. Confirmation and repetition are therefore necessary to strengthen them.
Also, it speaks of such mighty matters calling hearts to hold belief in them, and of minute verities inviting minds to know them; thus, in order to establish them in everyone’s hearts numerous repetitions are necessary in different forms.