Naqshbandi Muhibeen Resources on Sufi meditation, with online books and background articles on the Naqshbandi way. http://www.nurmuhammad.com/
Universel: A Course of Meditation A series of lessons on meditation, and articles on Sufism, with multimedia resources; the website is now maintained as a memoir of Pir Vilayat (1916-2004). http://www.theuniversel.net
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