Sufism Islam 80 Religious life 31 Doctrines 30 Mysticism 18 Early works to 1800 14 Customs and practices 13 Religious aspects 6 Early 5 God (Islam) 5 Islamic ethics 5 works to 1800 5 Sufis 4 Biography 3 Creation (Islam) 3 Faith (Islam) 3 History 3 Islamic sects 3 Worship (Islam) 3 Creation 2 Medicine, Arab 2 Muslim saints 2 Pillars of Islam 2 Sufi literature 2 Women in Islam 2 Arabic 1 Asceticism 1 Asceticism Islam 1 Creative ability 1 Critism textual 1