苦行

• Students receive instruction four times a day , sitting on a seat paved with sharp pebbles until he obtains the title of living buddha . there are many ranks to the title living buddha
  密院注重苦修苦行，无论寒暑，每日均须上殿四次，在铺以卵石的座位上席地而坐，赤足修炼，直至由显入密修到成佛，冠以活佛之名。