To these must be added the presence of Sufi orders...
To these must be added the presence of Sufi orders, which cut across confessional and ethnic boundaries and which, basing themselves by definition on the Unity that transcends all multiplicity, have been a major factor in the integration of Islamic society.
Finally, on the plane of forms, one must mention Islamic art, from the chanting of the Quran to geometric patterns found on articles and structures, an art that, despite local differences, has its own unique genius and has played a very important role in bringing about unity on the physical plane while permitting local variations and cultural diversity.
SOURCES OF DIVERSITY: THE HIERARCHICAL LEVELS OF MEANING AND INTERPRETATION OF THE TRADITION To understand the sources of diversity in the Islamic world, one must first of all turn to the hierarchy within the religion of Islam itself. The total religion called Islam may be said to consist of the levels of islam, iman, and ihsan, or surrender, faith, and spiritual beauty. The Quran refers often to the muslim, the possessor of surrender, the mu’min, the possessor of faith, and the muh.
sin, the possessor of virtue. Although the Quran emphasizes that all Muslims stand equally before God, it also insists that human beings are distinguished in rank according to their knowledge of the truth and virtue, as in the verses, “Are those who know equal with those who know not?” (39:9), to which the Quran gives the resounding answer of no, and, “Verily, those of you most close to God are those who are the best in conduct” (59:13).
These verses refer to degrees of perfection of believers, as one sees also in Christianity, and do not imply in any way exclusion, ostracism, or support for violence against certain groups. Later Islamic sages, especially the Sufis, have also spoken of the hierarchy of the Shari‘ah , or the Divine Law, the Tariqah, or the spiritual path, the Haqiqah, or the Divine Truth, which is the origin of both. Islam is then envisaged as a circle whose center is the Haqiqah.
The radii of the circle are the turuq (plural of Tariqah), later identified with the Sufi orders, and the circumference is the Shari‘ah . Each Muslim is like a point on the circumference, whose totality composes the Islamic community, or ummah. To reach the Haqiqah, one must first stand on the circumference, that is, practice the Shari‘ah , and then follow the Tariqah, or Path to God, whose end is the Center, God Himself, or the Haqiqah.