Letters, names and the ordering of the world

Arabic source excerpt

اعلم أيدنا الله وإياك أنه لما كان الوجود مطلقا من غير تقييد يتضمن المكلف وهو الحق تعالى والمكلفين وهم العالم والحروف جامعة لما ذكرنا أردنا أن نبين مقام المكلف من هذه الحروف من المكلفين من وجه دقيق محقق لا يتبدل عند أهل الكشف إذا وقفوا عليه وهو مستخرج من البسائط التي عنها تركبت هذه الحروف التي تسمى حروف المعجم بالاصطلاح العربي في أسمائها وإنما سميت حروف المعجم لأنها عجمت على الناظر فيها معناها

English translation draft

Know—may God support us and you—that existence, taken absolutely without restriction, comprises the One who imposes obligation, who is God the Real, exalted is He, and those under obligation, who are the world. Since the letters gather what we have mentioned, we wished to clarify, among these letters, the station of the One who imposes obligation in relation to those under obligation, from a subtle, established aspect that does not change for the people of unveiling once they recognise it. It is drawn from the simple elements out of which these letters are composed, called the letters of the alphabet in the Arabic convention of their names. They are called huruf al-muʿjam because they render their meaning obscure to one who examines them.