Introduction The phrase "Ilm Adad" (Arabic: علم العدد) translates to "the science of numbers" or numerology. In Islamic esoteric traditions, Ilm Adad refers to the mystical study of numbers, their spiritual significance, and their application in divination, talisman creation (simiya), and interpreting the Quran or Hadith. Often linked with Ilm al-Huruf (the science of letters), it assigns numerical values to Arabic letters (Abjad numerals) to uncover hidden meanings.
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