Tibetan spiritual leader the Dalai Lama has said the centuries-old Tibetan Buddhist institution will continue after his death, ending speculation ignited by his remark that he might be the last person

The Dalai Lama has become one of the world’s most recognizable figures while leading a Tibetan diaspora through their struggle for autonomy and opposition of China’s control of Tibet. He has not named a successor, but he says they will be born in the “free world” — outside China.

The 14th Dalai Lama turns 90 on Sunday and is expected to give his clearest signal yet on how his reincarnation will be determined at the event in Dharamshala, India, where the Dalai Lama has lived since fleeing Tibet in 1959 after a failed uprising against Chinese rule.