At 90, the Dalai Lama is still one of the world's most powerful spiritual leaders, writes Pico Iyer. Here’s why.

Tibetan spiritual leader the Dalai Lama ended years of speculation with that announcement that started when he indicated that he might be the last person to hold the role.

For much of the past century, the Dalai Lama has been the living embodiment of Tibet’s struggle for greater freedoms under Chinese Communist Party rule, sustaining the cause from exile even as an increasingly powerful Beijing has become ever more assertive in suppressing it.