Deliberation upon the following holy verses illuminates fully this claim...
Deliberation upon the following holy verses illuminates fully this claim: "And We sent no messenger before thee but We inspired him (saying): There is no God save Me (Allah), so worship Me" (Quran, XXI, 25); and, "Glorified be Allah from that which they attribute (unto Him), Save single-minded slaves of Allah" (Quran, XXXVII, 159-160); and, "Say, I am only a mortal like you. My Lord inspireth in me that your God is only One God.
And whoever hopeth for the meeting with his Lord, let him do righteous work, and make none sharer of the worship due unto his Lord" (Quran, XVIII, 111); and, "And serve the Lord till the inevitable [al-yaqin] cometh unto thee" (Quran, XV, 99); and God says, "Thus did We show Abraham the Kingdom of the heavens and the earth that he might be of those possessing certainty" (Quran, VI, 76); and "Nay, but the record of the righteous is in 'Iliyin - Ah! what will convey unto thee what 'Iliyin is!
From what has been said it becomes clear that the Holy Quran proposes three methods for the comprehension of religious truths: the external, or formal aspects of religion; intellectual reasoning; and sincerity in obedience leading to the intellectual intuition which results in the unveiling of the truth and its inward vision. Yet it must be understood that these three methods differ from each other in several ways.
For instance, since the external forms of religion are verbal expressions in the simplest language, they are in the hands of all people, and everyone benefits from them according to his own capacity. On the other hand, the other two paths, which are appropriate to a particular group (the elite - khawass), are not common to all.
The path of the external forms of religion leads to the understanding of the principles and the obligations of Islam and results in knowledge of the substance of the beliefs and practices of Islam, and of the principles of the Islamic sciences, ethics, and jurisprudence. This is in contrast to the other two paths.