According to Padma-thang-yig (Tibetan: པདྨ་ཐང་ཡིག), the empress said as below in the public place, and was supported by a majority of ministers: The so-called kapala are skulls of human beings; basuta are organs removed from men; rkang-gling are horns made of virgins' shinbones; zhing-cheg 'yang-gzhi are flayed skins; rakta are offerings sprinkled by blood; dkyil-'khor are colorful balls like rainbow; gar-pa are men whom wearing prayer beads which made by human bones.
The empress exposed this matter to ministers, Trisong Detsen had to exiled them to Rgyalrong (mordern Ngawa Autonomous Prefecture in Sichuan).
Later, Trisong Detsen invited Śāntarakṣita and Vimalamitra came to Tibet to spread the latest understanding of the teaching, they were obstructed by the empress without any exception.
The emperor's decision was strongly opposed by many nobles, including the empress Magyal Dongkar, and the famous general Nganlam Takdra Lukhong.
In response, the emperor hosted a famous debate between Buddhist and Bon supporters, and the winner would be recognised as the "state religion" in Tibet.
"Tsepang" members were banned from political affairs, and came into conflict with the powerful Lönchen, Nanam Shang Gyaltsen Lhanang, whom was Trisong Detsen's uncle.
On one occasion, the emperor sent dbu ring, whom was Shang Gyaltsen's son, to guard the palace gate in order to prevent "Tsepang" members from entering.
The empress' son Muné Tsenpo was installed as the new emperor, "Tsepang" members came into power again and exiled Yeshe Tsogyal.
[1] Magyal Dongkar poisoned the young emperor, and ordered the exiled prince Murug come back to take the throne.