The Khalwati order (also known as Khalwatiyya, Khalwatiya, or Halveti, as it is known in Turkey and Albania) is an Islamic Sufi brotherhood (tariqa). Along with the Naqshbandi, Qadiri, and Shadhili orders, it is among the most famous Sufi orders. The order takes its name from the Arabic word khalwa, meaning “method of withdrawal or isolation from the world for mystical purposes.” It is most widespread in Egypt, Albania, Bosnia, Turkey, and to a lesser extent, Azerbaijan. The order emerged out of the Safavi-Bektashi millieu and underwent Sunnification under the Ottomans. It was founded by Muhammad-Nur al-Khalwati, and his son Umar al-Khalwati, around the city of Herat in medieval Khorasan (now located in western Afghanistan). It was Umar's disciple, Yahya Shirvani however, who founded the “Khalwati Way” as a practice. Yahya Shirvani wrote Wird al-Sattar, a devotional text read by the members of nearly all the branches of Khalwatiyya. The Khalwati order is known for its strict ritual training of its dervishes and its emphasis of individualism, their poetry is also notable for being influenced by Hurufis like Naimi and Nesimi. Historically, the order promoted individual asceticism (zuhd) and retreat (khalwa), differentiating themselves from other orders at the time. The order is known as one of the source schools of many other Sufi orders. Source: Wikipedia (en)