"But in the second half of the twelfth century A.D., we find a new type of Muslim saint appearing on the scene and dominating it in subsequent centuries. That was the sufi joined to a silsila. This is not the place to discuss the character of some outstanding sufis (...) The common name which is used for these early sufis as well as for the teeming breed belonging to the latter-day silsilas, has caused no end of confusion. So far as India is concerned, it is difficult to find a sufi whose consciousness harboured even a trace of any spirituality. By and large, the sufis that functioned in this country were the most fanatic and fundamentalist activists of Islamic imperialism, the same as the latter-day Christian missionaries in the context of Spanish and Portuguese imperialism. [...] Small wonder that we find them flocking everywhere ahead or with or in the wake of Islamic armies. Sufis of the Chishtîyya silsila in particular excelled in going ahead of these armies and acting as eyes and ears of the Islamic establishment. The Hindus in places where these sufis settled, particularly in the South, failed to understand the true character of these saints till it was too late. The invasions of South India by the armies of Alãu’d-Dîn Khaljî and Muhammad bin Tughlaq can be placed in their proper perspective only when we survey the sufi network in the South. Many sufis were sent in all directions by Nizãmu’d-Dîn Awliyã, the Chistîyya luminary of Delhi; all of them actively participated in jihãds against the local population. Nizãmu’d-Dîn’s leading disciple, Nasîru’d-Dîn Chirãg-i-Dihlî, exhorted the sufis to serve the Islamic state. “The essence of sufism,” he versified, “is not an external garment. Gird up your loins to serve the Sultãn and be a sufi.” Nasîru’d-Dîn’s leading disciple, Syed Muhammad Husainî Banda Nawãz Gesûdarãz (1321-1422 A.D.), went to Gulbarga for helping the contemporary Bahmani sultan in consolidating Islamic power in the Deccan...."