Shaikh Mohiuddin Ibn Al-Arabi (1165 – 1240 CE) is a well-known, Sahih-ul-Aqeedah, Sufi Shaikh of Ihsan. He is called Shaikh al-Akbar because of his contributions in Islamic theology. He has written over 350 books. Most famous among them are (i) ‘Fusus al-Hikam’ in which he has explained the inner meanings of wisdom of Islamic Prophets, and (ii) Futuhat al-Makkiyya which contains his encyclopedic knowledge about Islamic tradition, reasoning, and Islamic insight. His most famous contributions to Islamic theology are his explanations about (i) The Unity of Existence (وحدة الوجود), and (ii) The Complete Human Being (الإنسان الكامل).