“The world is paying attention, but not enough,” Mr. Sangay added. “There was a self-immolation in Tunisia which was labeled the catalyst for the Arab Spring. We’ve been committed to nonviolence for many decades. And how come we have been given less support than what we witnessed in the Arab world?”

Yet even as the self-immolations have become central to the Tibetan protest movement, a quiet debate has been under way among Tibetans who are anguished over the deaths of their young men and who question how the acts reconcile with Buddhist teachings. Again and again, speakers emphasized that the Tibetan movement remains nonviolent and that the people who have self-immolated harmed only themselves.

“None of them have tried to harm anybody else,” said Penpa Tsering, the speaker of the Tibetan Parliament, which is based in Dharamsala, the Indian city that is host to the exiled Tibetan government. “None of the 99 people have tried to harm any Chinese.”

The Tibetan self-immolations began in 2009 as protests against China’s rule in Tibetan regions of the country. At least 81 Tibetans have died after their acts, and nearly all the self-immolations have occurred inside Tibet, with news smuggled out via e-mail or through networks of advocacy groups.