Palden Lhamo
Palden Lhamo, as the female guardian spirit of the sacred lake, Lhamo La-tso, promised the 1st Dalai Lama in a vision "that she would protect the reincarnation lineage of the Dalai Lamas." Since the 2nd Dalai Lama, who formalised the system, regents and other monks have gone to the lake to meditate and seek guidance on choosing the next reincarnation through visions.