The Rasāʾil Ikhwān al-Ṣafāʾ

Record summary

The Epistles of the Brethren of Purity are a tenth-century encyclopedic corpus blending philosophy, mathematics, cosmology, ethics, religion, music, and symbolic narratives. Their authorship is anonymous and their relationship to Ismaili thought remains debated, but the collection clearly presents knowledge as a spiritually transformative hierarchy. It matters for comparison with occult traditions because it shows how cosmological correspondences and concealed meanings can operate within a philosophical and religious encyclopedia without being reducible to a practical grimoire. The identity, organization, and precise doctrinal affiliations of the Brethren remain uncertain.