The books describe rigorous rituals required to contact the Rijalul Ghaib. These are not casual incantations. They often involve:
The most famous book bearing this title is often attributed to Sheikh Muhyiddin Ibn Arabi (1165–1240 CE), the Andalusian Sufi master known for Fusus al-Hikam and Al-Futuhat al-Makkiyya . However, it is also linked to Shah Waliullah Dehlawi and other later Sufi scholars who summarized Ibn Arabi’s cosmology. Rijalul Ghaib Book Pdf