A little bit of history…
According to history King Asoka, emperor of India sent his son, Arahat Mahinda Thero to Sri Lanka, as his special emissary to spread the message of Lord Buddha (the Buddhist philosophy of supreme truth on ending suffering) many centuries ago.
Legend has it, that a delegation was sent to extend a hand of friendship to King Devanampiya Tissa (307 BC – 267 BC). It was on the full moon day of June (Poson Poya) that the king who was on a hunting expedition encountered Arahat Mahinda atop the mountain of Mihintale close to Anuradhapura. As he listened to Arahat Mahinda preach the gospel of the Buddha, he was inspired by its teachings and embraced Buddhism. This is considered to be a significant cultural event that transformed the culture and lifestyle of Sri Lankans.