During the 49 years between attaining Buddhahood and his ultimate extinction or decease, he preached over 300 times to every kind of person throughout the Ganges region including kings, merchants and prostitutes. His concept that all people possess a Buddha nature and that everyone can become a Buddha, regardless of caste or station, had a profound effect.
自成佛到入滅（去世）的四十九年間，他談經三百餘次，在恆河一帶說法，接觸到各式各樣的人，有國王、商人、妓女，他本著「人人皆有佛性，不受階級或地位的影響，人人皆可成佛」的理念，深深打動人心。