The Qur’an, or Koran, is the Islamic sacred text that they believe was given to Muhammad, a prophet. In the Islamic faith, Muhammad is the last prophet who is divinely inspired to spread the message of God. Muslims also believe in the Day of Judgment and in the idea of divine decree, meaning that the events of a person’s life are predetermined. Muslims believe in the power of prayer and engage in charity and fasting during Ramadan. Every Muslim must make at least one pilgrimage to Mecca, a house of worship in Saudi Arabia.