After the collapse of communism in Russia, which is the home of more than 14 million Muslims, there has been an Islamic revival that has been part of the process of political and intellectual liberalization of society. The major Islamic enclaves of the Russian Federation are located in the Volga-Urals, the North Caucasus, and central Russia. Russian Muslims are concentrated in the eight autonomous republics of Tatarstan, Bashkortostan, Adyghea, Kabardino-Balkaria, Karachay-Cherkessia, Ingushetia, Dagestan, and Chechnya. Most Muslims belong to the Hanafi madhhab (the juridical school) of Sunni Islam, although Dagestani and Chechen Muslims adhere to the Shafii madhhab of Sunni Islam. There is also a small Shia community in southern Dagestan. A large number of Dagestanis, as well as Chechens and Ingushes, profess Sufism—a mystical form of Islam, which is also known as parallel Islam.