The first textbook of Sufism is the Qur'an; there is no principle of Tasawwuf that cannot be traced back to the Holy Book. The Sufis read the Qur'an for its inner meaning, but they do not claim this is the only meaning. The clear legal rulings, the moral exhortations and warnings of the Book, are not abrogated by the batini tafsir (inner exegesis) of the Sufis, but neither can the Noble Qur'an be limited to its legal and moral dimensions. If all the...