The title for this talk is drawn from the final mysterious book-title mentioned by Ibn 'Arabi in his listing of his own writings in the Fihrist ('Catalogue'). It would be impossible to appreciate Ibn 'Arabi's writings without encountering the notion of al-insān al-kāmil explicitly or implicitly, but how and where does Ibn 'Arabi actually use the term in his writing? What are the key features of this perfect human? In what way could it apply to each and every human being? Stephen Hirtenstein is a MIAS Senior Research Fellow and Director of Anqa Publishing. He served as the Editor-in-Chief of the Journal of the Muhyiddin Ibn 'Arabi Society from 1982 to 2023. Since 2001, he has been working on the MIAS archiving project for the historic manuscripts of Ibn 'Arabi. He works as an Editor for the Encyclopaedia Islamica (Brill in association with The Institute of Ismaili Studies, London) and runs courses on Sufism and Sufi poetry at the University of Oxford. His most recent publications include a three-part article on Ibn 'Arabi’s Fihrist ('Catalogue') in the Journal, and books such as Patterns of Contemplation (2021) and Ibn 'Arabi’s Prayers for the Week (2021). He is currently revising his first book, The Unlimited Mercifier (1999). He has just been elected an Honorary Fellow of the Ibn 'Arabi Society.