Muslim culture represents the unification of all the cultures influenced by common beliefs and practices. The guiding religious phenomena and cultural aspects bind its people historically. The religious practices and beliefs of Muslims are centered around the religion of Islam. The original Muslim literature is in Arabic, the Prophet's language. Most of the literature is religious in nature. It comprises communication and documentation of the belief system from the Quran, Sira and Hadith. Secular Muslim literature developed in the Umayyad empire. It was taken by the Arabs to distant lands and became part of a popular culture. In due course of time, Persian became one of the main languages of the civilization. In the sub-continent, syncretistic poetry from the Sufis propagated the foundations of Muslim culture.
The Quran is considered to be the source of many aspects of Islamic culture. Certain acts or rituals that Muslims do almost subconsciously are actually encouraged, or allowed by Allah, or mandated, in the Quran. The standard greeting amongst all Muslims the world over is "As-Salaamu Alaykum." Also, when speaking of future events Muslims say Inshallah (If Allah Wills), and say Bismillah (In the Name of Allah) before doing just about anything.*