1) Islam is a complete way of life that advocates peace, mercy and forgiveness. Fundamental beliefs include the oneness of God, belief in all prophets, holy books, angels, judgment day and destiny. 2) Five essential religious duties or pillars are the shahadah, salat (prayer), zakat (charity), sawm (fasting during Ramadan), and hajj (pilgrimage to Mecca). 3) The Quran is the fundamental religious text of Islam and the most important guide for Muslims. Hadith elaborate on the Quran.