Historians usually describe Sufism as the mystical core of Islam and date its appearance at about the ninth century A.D., approximately two hundred years after the birth of Islam. In its universal sense, however, Sufism includes the mystical dimensions of all religions practices. The branches of that tree are mysticism. The fruit of the tree is truth. Sufism is no different from the mysticism at the heart of all religions. Just as a river passes through many ...