Golok tradition of writing Tibetan langauge

Vairotsana (or Berotsana (Tib. བཻ་རོ་ཙ་ན་, Wyl. bai ro tsa na), Vairochana (Tib. བཻ་རོ་ཅ་ན་, Wyl. bai ro ca na)) (eighth-ninth centuries) — the greatest of all Tibetan lotsawas. Together with Padmasambhava and Vimalamitra, he was one of the three main masters to bring the Dzogchen teachings to Tibet.
Contents [hide]
1 Biography
2 References
3 Further Reading
4 External Links
Biography

Vairotsana was born into the Pagor (Tib. སྤ་གོར་, Wyl. spa gor) clan, and was sent to India by Trisong Detsen to study with Indian panditas. He also travelled widely in China, Khotan, Nepal, Shangshung and elsewhere. He was one of the original seven monks ordained by Shantarakshita.
His principal teacher was Shri Singha, from whom he received the instructions and empowerments of sem dé, long dé and mengak dé. He also received direct transmissions from Mañjushrimitra, who appeared to him in his wisdom body[1]. In realization, Vairotsana became equal to Guru Rinpoche.
After returning to Tibet, he was eventually sent into exile in East Tibet; there he taught Yudra Nyingpo, Sangtön Yeshe Lama, and the old man, Mipham Gönpo before Trisong Detsen recalled him to Lhasa.
He translated many of Shri Singha's works as well as many other mantrayana texts. He also translated part of the 100,000 verse Prajnaparamita text and other sutras. The exact number of his translations cannot now be traced, as the names of early translators were not always recorded by later translators.
Ngok Loden Sherab (1059-1109) once famously observed:
Vairotsana was like the boundless sky itself,
Kawa, Chok and Shyang were like the sun and moon,
Rinchen Zangpo was like the great dawn star—
Compared to them, we are like mere fireflies.
Shantarakshita (Skt. Śāntarakṣita; Tib. ཞི་བ་འཚོ་, Shyiwa Tsho, Wyl. zhi ba 'tsho), also called Khenpo Bodhisattva, 'Bodhisattva Abbot'. This great Indian pandita of the Mahayana school was abbot of the Buddhist university of Nalanda. He was invited to Tibet by King Trisong Detsen where he founded the temple and monastery of Samyé and ordained the first seven Tibetan monks, thus establishing the Tibetan Sangha, according to Nagarjuna's Sarvastivadin tradition. He worked extensively to uphold and maintain the Buddhist teachings, and so began to establish the Buddhadharma in Tibet. However, indigenous forces that opposed and were hostile to the Dharma were increasing in strength. Neither the might of the king, Trisong Detsen, nor the power of the great abbot Shantarakshita could subdue them, and so they invited Guru Rinpoche to come to Tibet.