Since the seventh century A.D., the culture of the Arab world has been dominated by the last of the three great monotheistic religions to have emerged from the region: Islam. Islam, faith of the vast majority of Arabs, is more than just a religion; it is the focal point of Arab society for Muslims and non-Muslims alike, permeating their culture at every level—political, social, economic, as well as private. To appreciate the enormous force of Islam in the Arab world, one must understand the basic tenets of the faith—how it emerged and grew.
Islam originated in the Arabian Peninsula— present-day Saudi Arabia—in 622 A.D. According to Islamic tradition, God (Allah) conveyed to Muhammad, a tradesman, a series of revelations which were to form the basis of the new faith. Islam means submission—submission to the will of God; a Muslim, in turn, is one who has submitted himself to Allah and who acknowledges Muhammad as His prophet.
Muslims consider Prophet Muhammad to be the last in a series of prophets which included Abraham, Moses and Jesus, to whom God revealed His Divine Message. Islamic tradition, in fact, takes into account the doctrines of both Judaism and Christianity which preceded it. For example, Muslims believe, as do both Jews and Christians, in one God and in an afterlife. Islam also acknowledges Jews and Christians as the "people of the Book" (ahl al-kitab), "the Book" meaning the Bible, and has granted them privileged status from the early days of the Islamic empire into modern times. For this reason, religious minorities throughout the Arab world have survived and flourished during periods of severe cultural and religious repression elsewhere.
The body of revelation which Allah delivered to Muhammad through the Angel Gabriel is contained in the Qur'an, the holy book of Islam. The Qur'an, written in Arabic, the language of Allah's divine transmission, provides the Muslim believer with all he or she needs to know to lead a good and pious life. In addition to its obvious religious significance, the revelation of the Qur'an represents the crowning literary achievement of the Arabic language. It has been both an immeasurable influence on the development of Arabic literature and an inspiration for all branches of literature and scholarship. Islamic acts of devotion and worship are expressed in the Five Pillars of Islam. These involve not only profession of faith, but also recognition of God in all aspects of human conduct. The Five Pillars are:
(1) Profession of Faith, or shahada in Arabic, which requires the believer to profess the unity of God and the mission of Muhammad. This involves the repetition of the formula: "There is no God but Allah and Muhammad is the messenger of Allah." This assertion forms part of every prayer and in a critical situation, one may repeat the first part in order to establish one's identity as a Muslim.
(2) Prayer, salatt, is required five times a day: at dawn, noon, mid-afternoon, sunset and dusk. It must be performed in a state of ritual purity and every word must be in Arabic. The worshipper has the choice of praying privately, in the open air or in a house; or with a group outdoors or in a mosque. Islam opposes the practice of withdrawing into ascetic life. For this reason, there is no priesthood, as is known in the West, only 'ulema, learned men, who are well-versed in Islamic law and tradition. Throughout the Muslim world, services are held at noon on Fridays in mosques. Muhammad did not explicitly designate Friday as a day of rest, only a part of which is devoted to a special religious service. Merchants are free to open their shops before and after the service.
(3) The third Pillar of Islam, Almsgiving, zaka or zakat, embodies the principle of social responsibility. This precept teaches that what belongs to the believer also belongs to the community in the ultimate sense, and that only by donating a proportion of his or her wealth for public use does a person legitimize what he or she retains. The zaka, in addition to the other tenets of Islam, is a religious obligation, and believers are expected to treat it seriously.
(4) The ancient Semitic institution of Fasting is the fourth Pillar of Islam, known as saum. To a Muslim, it means observing Ramadan, the month during which, it is written, God sent the Qur'an to the lowest heaven where Gabriel received it and revealed it in time to Muhammad. Fasting demands complete abstinence from food and drink from dawn to sunset every day during Ramadan.
(5) The last cherished Pillar of Islam is the Pilgrimage to Mecca, al-hajj, where God's revelation was first disclosed to Muhammad. Believers worship publicly at the Holy Mosque, expressing the full equality among Muslims with a common objective—all performing the same actions, all seeking to gain the favor of God. All pilgrims, from various cultures and classes, wear identical white robes as they assemble around a single center, the Ka'aba, which inspires them with a strong sense of unity. Every Muslim is expected to make the pilgrimage at least once during his or her lifetime. Attached to the experience of the pilgrimage is added status: after the individual returns home, he or she is addressed as "al-Hajj" or "al-Hajjah" (the pilgrim), a title which carries great prestige.
While the Islamic community throughout the world is united by the two essential beliefs in (1) the Oneness of God and (2) the divine mission of His Prophet, there developed shortly after Muhammad's death a debate within the Islamic community over who should succeed the Prophet as leader of the faithful. This debate split the community into Sunni and Shi'ite Muslims. It is important to remember, however, that on fundamental issues, Sunni and Shi'ite Muslims are in basic agreement since they both draw on the Qur'an and the Shari'ah, body of Islamic Law.