Meaning of life his names, and his attributes. Terrenal life is a test; how one "acts" (behaves) determines whether one's soul goes to Jannat (Heaven) or to Jahannam (Hell). However, on the day of Judgement the final decision is of Allah alone. The Five Pillars of Islam are duties incumbent to every Muslim; they are: Shahadah (profession of faith); salat (ritual prayer); Zakah (charity); Sawm (fasting during Ramadan), and Hajj (pilgrimage to Mecca). They derive from the Hadith works, notably of Sahih Al-Bukhari and Sahih Muslim. The five pillars are not mentioned directly in the Quran. Beliefs differ among the Kalam. The Sunni
Muslim conquest of Persia were Sunni Muslims, though today Iran is known as a stronghold of the Shi'a Muslim faith, recognizing Islam as their religion and the prophet's son in law, Ali as an enduring symbol of justice. According to Amoretti in Cambridge History of Islam, the Arab conquerors brought with them a new religion and a new language, but they did not use force to spread it. While giving freedom of choice, however, the Arab conquerors designated privileges for those who converted. During the Rashidun Caliphate, the official language of Persia (including Mesopotamia) remained Middle Persian (Pahlavi), just as the official languages of