Hurufism

Hurufism (Arabic: حُرُوفِيَّة ḥurūfiyyah, Persian: حُروفیان horūfiyān) was a Sufi movement based on the mysticism of letters (ḥurūf), which originated in Astrabad and spread to areas of western Iran (Persia) and Anatolia in the late 14th and early 15th centuries.