Dr. Alexander Berzin (with archeological information by Sergei Sokolov)
The Sufis build shrines as graves for their masters, circumambulate them and light butter lamps, reminiscent of Buddhist practices around stupas of deceased masters.
Sufi meditation includes recitation of the Islamic equivalent of "mantras," often combined with breathing cycles, as well as visualization of the[ir] Prophet and spiritual masters.
Historically, Buddhism was found in all five former Soviet Central Asian Republics that constitute West Turkistan: Turkmenistan, Uzbekistan, Tajikistan, Kyrgyzstan, and Kazakhstan.
Buddhism spread to Sogdia  in central Uzbekistan and northwestern Tajikistan mostly from Bactria. The sixth century Chinese pilgrim Xuanzang (Hsüan-tsang) reported two huge Buddhist monasteries at the Sogdian capital at Samarkand.
In the seventh century, when the Turkic people from Mongolia conquered most of Central Asia, Buddhism spread from the Sogdians and from Kashgar/Khotan in southern East Turkistan to the Taraz (Talas) River valley in southern Kazakhstan and the Chu River valley in northern Kyrgyzstan.... These regions constituted parts of the Western Turk Empire .
- Sufism in Buddhist Bangladesh
Sufism versus Islam (Iranian.com)
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Democracy in Kyrgyzstan (PRI's The World, June 7, 2011)
Buddhism and Islam in East Turkistan
The Historical Context: Buddhism and Islam
Buddhism and Islam in Afghanistan