As the Algerian sociologist Mohammed Arkoun explains, a unitary Islam does not exist; there are only Muslims. Each individual Muslim enters into direct relation with God by the intermediary of the Koran.
… Islam is closer to Protestantism in its lack of organization and its diversity than to Catholicism, unified by the Church and the pope. “Muslims are Protestants,” said Arkoun. Indeed, there is as much distance between a Swedish Lutheran community and a Brazilian evangelical temple as between a Javanese mosque and a Senegalese community.