According to the CTA in a 2013 White Paper:
"This breakdown in the transmission of Buddhism from the old to the new generation is the most fatal assault on Tibetan Buddhist culture. In turn, it had led to the collapse of the special bond between spiritual masters or the lamas and their students.
This special bond or dam-tshig is the sacred commitment to maintain harmonious
relationship between masters and students and at the same time foster the continuity of the true teachings and practice. Dam-tshig consists of the vows of integrity, pledge, loyalty, and the word of honour between teachers and the students.
Since the introduction of Buddhism to Tibet in the 7th century, the entire corpus of Buddhist philosophy and knowledge of astronomy, language, law and ethics were passed from one generation to the next through this unique system of learning. This becomes especially important in the practice of Buddhist tenets as many essential teachings, initiations and transmissions are orally passed from the root masters to their students."
The CTA was of course tacking this to China's rule of Tibet, but unfortunately, their blind persecution of Dorje Shugden practitioners make them guilty of their own vitriol. It's like spitting in the wind.
Fast-forward to 2016, the ban on Dorje Shugden has resulted in more unnecessary breaking of dam-tshig than China's rule of Tibet, where religious freedom thrives and the Gaden tradition flourishes.
Dear CTA, Mao is dead.
Bring back Dam-Tshig, stop persecuting Dorje Shugden practitioners!
Source:
http://tibet.net/2013/01/why-tibet-is-burning/