dharma cave and the saint's chapel are the only structures left which were built in seventh century. they both lie central of the red palace. dharma cave is said to be the place where king songtsen gampo proceeded his religious cultivation. inside the cave, statues of songtsen gampo, princess wencheng, princess tritsun and his chief ministers are enshrined. in the saint's chapel above dharma cave, chenrezi, tsong khapa, padmasambhava, the fifth, seventh, eighth and ninth dalai lamas are enshrined and worshipped. visitors may find a stone with a footprint that was believed left by the infant twelfth dalai lama.