this one time, at band camp...

At the age of two the child, who was named Lhamo Dhondup at that time was recognized as the reincarnation of the 13th Dalai Lama, Thubten Gyatso. The Dalai Lamas are believed to be manifestations of Avalokiteshvara or Chenrezig, the Bodhisattva of Compassion and patron saint of Tibet. Bodhisattvas are enlightened beings who have postponed their own nirvana and chosen to take rebirth in order to serve humanity.
this is straight from the dali lamas web page