Batin is defined as the interior or hidden meaning of the Quran. The Qur’an ( القرآن, literally "the recitation" also sometimes transliterated as Qur’ān, Koran, Alcoran Some Muslim groups believe that the Batin can only be fully understood and interpreted by the Aga Khan, who is the Imam of the Time. Aga Khan ( آقا خان) is the Hereditary title of the Imam of the Nizārī Muslims the largest branch of the Ismā'īlī This is a sub-article to Imamah (Shi'a doctrine. The Ismaili view on the Imamah differs from the Twelver Shi'a as well as Sunni views This is in contrast to the Quran's exterior or apparent meaning, or the Zahir. According to some Muslim groups the Zahir is the external or apparent meaning of the Quran.
In a wider sense, "batin" can refer to the inner meaning or reality behind all existence, the Zahir being the world of form and apparent meaning. According to some Muslim groups the Zahir is the external or apparent meaning of the Quran.