Th is is a thes is on Arsi-Arabic literanlre with spec ific refe rence to Shaykh Muhammad'aman HaJaga and his manuscr ipt on 'awlliq or numerology . The manllscript was written in Arabic in 1383 A.H. ( 1956 AD.) under the title MifiiII! al-MighliIq SarI! Sullflll! al-Mar:hl Ii 11m :/1- ':/lIlliq , .to SI .1, .i .1 .. II eL r ,;;. .)\.Ujl rW. "The Ke\ to the Lock: .-\n Elaburatlon 01' the ,'-' J r---...;>.....,,~ ..... --' '-' '- Ladder of r\scens ion in the Science uf 'fllVlliq" The thes is is divid ed into fi ve chapters. The first is an introduction where I state the problem, re view related literature, outline the historical background and hi ghlight the research area. I\;umerology is just one small part of the broader field of occultism, and is intertwined with other branches of occultism (e.g. astrology, geomancy etc. ). Hence, in the second chaptcr. I give an in troduction to oeculr- ism ,lIld issues relilled thereto: li rst a general Introduction to occ ulti sm, fo llowed by an overview or Arabic· lslamic occult traditions and finall y louking intu Ethiopian occul tism. Chapter three provides a biography 0[' Shaykh M uhammad'aman Haclaga (1873-1959 A.D) r\ fter the ea rly tragic death of his father and elder bro ther he lived alone wi th his mother among a tribe other than his fathe r's. This sense of suc ial iso lation developed in him an attitude of Independe nce and advocacy for disadva ntaged groups and was to ha ve great Impact on his personality he was a distinguished scholar and soci,li figure. It is an in teresting to find an original work on occult traciiti un by an EthiopiCin >c hoLlr. descri be and examine th is worK in the fo urth chapter. According to iniormallis. it is the only \\'ork of its kind by an Arsi schola r. Shaykh fvluhammad 'Jman followed the conventional pract ice 0 1' Muslil11 schola rs bv prl1tiucing his work in thc lorm of a POCI11 anti thcn \\Ti ting an authoritati\'c coml11entary on it. I prcscl1l excerpts frol11 Ihc poe III ,Inti thc COI11I11<:III'l r)" wi th ph ilological and con tent -oriented discussion,