Buddhism, especially the Trans-Himalayan Buddhism from Tibet is the very essence of living in Ladakh . Partly because of the royal patronage, the central part of Ladakh has the greatest concentration of major Gompas or monasteries. From the twelve situated near the Indus River banks, a must visit is the oldest Lamayuru believed to have been a sacred site for pre-Buddhist religion known as 'Bon'. Monasteries of Phiyang, Hemis and Chemrey belong to the Namgyal dynasty period and are a major attraction during their monastic festivals. The reformist group monasteries are also well represented in central Ladakh by Thikse, Likkir, Rhidzong and Spituk.