Two twin brothers, the children of a weizza from the Himalayas and a naga (dragon) princess were abandoned by their mother as eggs on the western base of Zinkyaik Mountain, where there was an island not far from the beach. Tissa, while walking and meditating, found the eggs and carried them back to his monastery at Zinkyaik Mountain. That night, Tissa saw a signal light from Mount Zwegabin from his brother, Thiha. Thiha met Tissa and Tissa gave him one of the eggs. Thiha took one egg to Mount Zwegabin, and one remained with Tissa. Tissa's egg hatched first on top of Zinkyaik Mountain, and later, Thiha's egg on Mount Zwegabin. Tissa named the baby under his care Thuriaya Kumaya because he was born at sunrise. The youngest twin brother passed away at the age of ten due to smallpox. So, Thiha came to raise Thuriaya Kumaya together with Tissa at Zinkyaik Mountain.