All divine religions believe that a savior and a strong divine hand will come in a part of the human history. He will come to save the world from injustice, oppression and cruelty. All Muslim sects and denominations believe that Imam Mahdi (a.s.) who is from the descendants of the holy Prophet of Islam (pbuh) will fill the world with justice and will rise up to uphold God’s religion and divine right. Even non-Muslims somehow believe in a favorable and luminous future for humanity which is in conformity with our belief in Mahdsim. Thus, this doctrine in which all Muslim believe is not exclusive to Shiites. Of course, there are some differences about the particulars and details of the belief among divine religions and Muslim sects. However, Muslims in general believe unanimously that a time will come when a person from the Prophet's family will rise up and embark on reforming the entire world.