A book on Islamic Sufism entitled The Lights of Rahmania in the Supreme Way, Qadriya Kisnazani of the Master
 Sheikh Caliph Muhammad al-Muhammad al-Sheikh Abd al-Karim al-Kasanzan, head of the Qadariyya al-Qadisiyya al-Kisnaziyya method in the world, is a summary of Islamic mysticism in the al-Kisaniyya method.