About Shin Arahan

The Venerable Shin Arahan was Thathanabaing of Burma of the Pagan Kingdom from 1056 to 1115. The monk, a native of Thaton Kingdom, was the religious adviser to four Pagan kings from Anawrahta to Alaungsithu. He is credited with converting Anawrahta to Theravada Buddhism, and overseeing the subsequent reformation of the Buddhist school throughout the kingdom. However, evidence strongly suggests that the Theravada Buddhism of Shin Arahan and early Pagan was one strongly influenced by Hinduism as compared to later more orthodox standards. Within 75 years of Shin Arahan's death, the Buddhism of Pagan would be realigned with the Mahavihara school of Ceylon although his Conjeveram-Thaton school lasted 200 more years before finally dying out.
Thai monks blessing the King of Thailand in Wat Nong Wong

Theravada Buddhist monks – Guardians of the monastic code

is the most commonly accepted name of Buddhism's oldest existing school. The school's adherents, termed Theravādins, have preserved their version of Gautama Buddha's teaching or Buddha Dhamma in the Pāli Canon for over a millennium. Aided by the patronage of Mauryan kings like Ashoka, this school spread throughout India and reached Sri Lanka through the efforts of missionary like Mahinda. Starting at around the 11th century, Sinhalese Theravāda monks and Southeast Asian elites led .