Hurufism

Hurufism (Arabic: حُرُوفِيَّة ḥurūfiyyah, Persian: حُروفیان horūfiyān) is a form of islamic numerology based on the mysticism of letters (ḥurūf), essentially being the islamic equivalent of gematria. It originated in the Sufi circles of Astrabad and spread to areas of western Iran (Persia), Anatolia, and the Balkans in the late 14th and early 15th centuries.