Sufism (Arabic: الصوفية‎, romanized: al-Ṣūfiyya or Arabic: التصوف‎, romanized: al-Taṣawwuf) is a mystic body of religious practice found within Islam which is characterized by a focus on Islamic purification, spirituality, ritualism, and asceticism.Practitioners of Sufism are referred to as "Sufis" (from صُوفِيّ, ṣūfīy), and historically typically belonged to "orders" known as tariqa (pl. ṭuruq) - congregations formed around a grand wali who would be the last in a chain of successive teachers linking back to Muhammad, with the goal of undergoing tazkiya (self purification) and the hope of reaching the spiritual station of ihsan. The ultimate aim of Sufis is to seek the pleasure of God by endeavoring to return to their original state of purity and natural disposition, known as fitra. Sufism emerged early on in Islamic history, partly as a reaction against the expansion of the early Umayyad Caliphate (661–750) and mainly under the tutelage of Hasan al-Basri. Although Sufis were opposed to dry legalism, they strictly observed Islamic law and belonged to various schools of Islamic jurisprudence and theology. Although the overwhelming majority of Sufis, both pre-modern and modern, remain adherents of Sunni Islam, certain strands of Sufi thought transferred over to the ambits of Shia Islam during the late medieval period. This particularly happened after the Safavid conversion of Iran under the concept of Irfan. Important focuses of Sufi worship include dhikr, the practice of remembrance of God. Sufis also played an important role in spreading Islam through their missionary and educational activities. Despite a relative decline of Sufi orders in the modern era and attacks from fundamentalist Islamic movements (such as Salafism and Wahhabism), Sufism has continued to play an important role in the Islamic world. It has also influenced various forms of spirituality in the West and generated significant academic interest. Source: Wikipedia (en)