The Dalai Lama has spent almost his entire adult life as a refugee from his homeland of Tibet. Fleeing Chinese persecution in the 1950s, he has built a nation in exile, striving to preserve Tibetan culture as not just the spiritual leader of Tibetan Buddhism, but as a global ambassador for his people's cause.

But he knows a transition is coming. On his 90th birthday this week, the Dalai Lama announced plans for how his successor will be chosen after his death. Since that successor will be a child, that means years of power vacuum that China is almost certain to capitalize on, including attempting to name a rival Dalai Lama of their own.

Mujib Mashal is the South Asia bureau chief with the New York Times. He explains what's at stake for the people of Tibet — and Asian geopolitics more broadly — in the coming power struggle when the Dalai Lama passes on.

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