Messianism is the belief in a messiah, a savior or redeemer. Many religions have a messiah concept, including the Jewish Messiah, the Christian Christ, the Muslim Mahdi and Isa (Arabic name for Jesus), the Buddhist Maitreya, the Hindu Kalki and the Zoroastrian Saoshyant. The state of the world is seen as hopelessly flawed beyond normal human powers of correction, and divine intervention through a specially selected and supported human is seen as necessary.