Chinese renewed efforts to crack down on Tibet, refusing to give them basic freedoms only worsens the cause. Tibetans will only fight harder as more and more of their rights are taken away by the Chinese. These beliefs are deeply entrenched in the religion of the Tibetans who offer their lives as signs of protest. Self-immolation is not a new practice, but goes back years and years with other very famous instances such as Thich Quan Duc's display in protest of the Vietnam War. While not so logical, this practice is a very strong symbol that oppressed people can only take so much subjection.
Via Seth Dixon