The Divine book revealed to the final messenger of ALLAH is Quran. The confirmation provided by the Quran itself, as well as chronological research, proves that the original Quranic text has not been altered or is expected to be tainted in the future. This is an exclusive characteristic of the Quran and is not shared by the previous Divine books now extant. The Quran exemplifies the deen (The System of life) revealed to the previous Messengers of God in its true and perfect form. The form of expression of the Quran is neither poetry nor prose, but has its own approach and style. It has an extraordinary attractiveness and magnificence, and is inspiring.