The highest-ranking Buddhist lamas are tulkus, meaning they're these of previous lamas
... 
literally means "man of Buddha activity"), is the third-highest ranking lama in Tibet 
and the ... All three of these lamas--the Dalai Lama, the Karmapa, and the 
Panchen ... in Tibetan) and is considered the reincarnation of the previous Dalai 
Lama.