The late Mogok Sayadaw Gyi, Agga Maha Pandita, Sayadaw U Vimala gave this talk - 'Thit Sar Theet Phoet a Yay Kyee Sone; or 'It is most important to kNOW the Saccas' at U Than Daing's house in Yangon, Myanmar on 8th July 1962. Sayadaw U Vimala emphasized that one must learn 'Paticcasamuppada or the Theory of Dependent Origination' which would help in becoming Enlightened, as practised and preached by the Buddha HIMSELF.