Sufism or taṣawwuf (Arabic: تصوّف‎) is the inner, mystical dimension of Islam, particularly Sunni although with some Shia orders. A practitioner of this tradition is generally known as a ṣūfī (صُوفِيّ), though some adherents of the tradition reserve this term only for those practitioners who have attained the goals of the Sufi tradition. Another name used for the Sufi seeker is Dervish.