Tibetan Buddhism based on principle of 'invariability'

Buddhism was introduced to Tibet from India and China's hinterland in the middle of the 7th century. That was also the time when the localization and Sinicization of Buddhism began on the Qinghai-Tibet Plateau.

In its more than 1,300 years of development in Tibet, Buddhism has undergone many a twist and turn, including initial dissemination, setbacks and revival to become what today is known as Tibetan Buddhism. Not to mention it has been enriched by Chinese cultural elements.

Given that the Qinghai-Tibet Plateau is the "roof of the world" with extremely cold and dry weather, many practices of Indian Buddhism could not be replicated in Tibet. So Tibetan Buddhism has adapted to the geographical environment, and developed based on the Tibetan way of life.