Dark Night of the Soul, the, 166. Davids, Professor T. W. Rhys, 19. Dāwud al-Tāʾī, 36. Deification, 149 ff., 163. _dervīsh_, 37. Dervish Orders, the, 48, 95, 125, 130, 140 ff. Dervishes, maxims for, 38, 39. Devil, the, 49, 53, 69. _See_ Iblīs _and_ Satan. _dhawq_, 59. _dhikr_, 10, 45 ff., 63. Dhu ’l-Nūn the Egyptian, 13, 65, 79, 116, 145. Dionysius the Areopagite, 12 f., 112. Directors, spiritual, 31, 32 ff., 89, 140 ff., 165. _Dīvān of Shamsi Tabrīz_, 95. Eckhart, 118, 154. Ecstasy, 59 ff., 118, 132, 133, 166. See _fanā_. Eden, 161. Elias, 14. Emanation, the theory of, 80, 96. Emerson, 110. Euchitæ, the, 11. Evil, the unreality of, 94. Evil, part of the divine order, 96 ff. Evolution, of Man, 168. _fanā_, 17 ff., 28, 48, 59, 60 ff., 144, 149, 155 ff., 164, 165, 166. _fanā al-fanā_, 61, 79. _fānī_, 155. _faqīr_, 37, 38. _firāsat_, 51. FitzGerald, Edward, 97. Frothingham, A. L., 12. Fudayl ibn ʿIyād, 109. Gairdner, W. H. T., 16. _ghaybat_, 59. Ghaylān, 105. Ghazālī, 24, 46, 96. Gnosis, the, 7, 14, 29, 30, 68 ff., 121, 164. Gnosticism, 14 ff. Goldziher, Professor I., 14, 16. Gospel, the, 10. Hafiz, 88, 102. _hāl_, 29, 59. Hallāj, 40, 149 ff., 160. Hamadhān, 108, 109. _haqīqat_, 29, 79. _See_ Truth, the. _Haqq_ = God, 1, 81. See _Ana ’l-Haqq_. _haqq_, 164. Hasan ʿAttār, Khwāja, 144. _hātif_, 63. Heart, the, a spiritual organ, 50, 68 ff. Heaven and Hell, subjective, 97, 162. Hierotheus, 12. Hind, 105. Hujwīrī, 31, 32, 54, 63, 65, 92, 110, 123, 124, 126, 159, 160. _hulūl_, 150, 151, 154, 157. Hulūlīs, the, 151. Husayn ibn Mansūr, 149. _See_ Hallāj. Hypnotism, 139 ff. Iblīs, 99. _See_ Devil, the. Ibn al-Anbārī, 51. Ibn al-ʿArabī, 87, 102, 103, 105, 111, 125, 155, 166. Ibrāhīm ibn Adham, 14, 16. _ihsān_, 53. Illumination, 7, 50 ff., 70. _ʿilm_, 71. Immortality, impersonal, 167, 168. Incarnation, 150, 151, 157. See _hulūl_. India, 16, 161. Inge, Dr. W. R., 112, 151, 154. Iqbal, Shaikh Muhammad, 15. ʿIrāq, 161, 168. Islam, relation of Sūfism to, 19 ff., 71 ff., 86 ff., 159, 160. _istinbāt_, 23, 24. _ittihād_, 157, 158. Jabarites, the, 6. Jacob of Sarūj, 12. _jadhbat_, 59. Jalāluddīn Rūmī, 25, 64, 67, 69, 95 ff., 105, 106, 107, 109, 113, 116, 117, 118, 119, 125, 129, 132, 148, 152, 155, 161, 162, 168. _jamʿ_, 159. Jāmī, 38, 66, 80, 81, 83, 106, 110, 142, 166. Jesus, 10, 133, 150, 153, 157. _See_ Christ. Jews, the, 122. Jinn, the, 132. John, St., 82. John Scotus Erigena, 12. Joseph, 99, 116. Journeys, mystical, 163, 164. _See_ Path, the. Junayd of Baghdād, 34, 35, 52, 88, 91, 112, 113, 131. Kaʿba, the, 58, 91, 92, 105, 116, 134. _karāmāt_, 122, 129. Karma, the doctrine of, 19. _Kashf al-Mahjūb_, 54, 63. _See_ Hujwīrī. Khadir, 14, 113, 127 ff. _khirqat_, 49.