Buddhism is said to have been introduced by King Songsten Gompo during the 7th Century. Tibetans during this time period were a much more warlike people than what they developed into after the spread of Buddhism. During this time Tibet had created an empire that pressed into Western China, Bengal, Mongolia and Central Asia. Tibet had even sacked the Chinese capital of Chang’an during this period and was a dominating force in the Tarim Basin. In fact Tibet was such a force during this time that China had to form a multi-regional pact with ever major state bordering Tibet. This pact was made up of the Uighur Khagnate North of Tibet, Arabs to the West of Tibet, Nanzhao and Hindustan from the South and the Chinese from the East. With this pact China could effectively do what they could not do alone, contain Tibet by having it attacked from all sides to make sure it could not threaten to invade China. This strategy worked since Tibetan forces could not concentrate on China with its enemies attacking from all its surrounding regions. Tibetan power in the region soon declined and collapsed in 866 AD, later on Tibetans adopted an isolationist policy.
So my question is do you think the spread of Buddhism in Tibet was a negative thing for Tibetans that contributed to Tibet’s decline in power since the decline in Tibetan power and the spread of the Tibetan Buddhism seem to have come right at the same moment. Or do you think that in the long run Buddhism spreading into Tibet was a good thing?