eight great caves: : Yangdzong Phuk (yang rdzong phug), Chimphu Phuk (mchims phu phug), Kharchu Phuk (mkhar chu phug), Sheldrag Phuk (shel brag phug), Senge Dzongphuk (seng ge rdzong phug), Yerpa Phuk (yer pa phug), Yama Lungphuk (g.ya' ma lung phug), Namkha Dingphuk at Chuwori (chu bo ri'i nam mkha' lding phyug)