Kayastha (also referred to as Kayasth or Kayeth) is an ancient community. Kayastha word is very often seen in Tipitika the Buddha's verses where this is used for the deep jhani's(Meditator) It comes in the famous Buddha's discourse given in "Satipatthana Sutt" where the Gotama The Samma Sambuddha explain about the four types of mindfullness. 1, kaye kayanupassi viharati atapi sampjano satima vinniyeloke abhijjadomanassan.( Here a monk dwells ardent with awareness and constant thorough understanding of impermanence observing Body in Body(.काया के भीतर स्थित (कायस्थ) होकर जो अविद्या को दुर कर्ता है).Kayastha are the person instead of community in itself who are mindfull with the self that is dwell in his "Kaya" where one can sees the truth within. and experience insight. the real knowledge the truth actually exist inside the body(Kaya). Later on when all the beings living in "Jambudeepa" which was now evolve to the vast states as "Maha janapada".were specially known in four specific sects like Brahmin(Bamana),kkhattiya(,kshatriye),vanijo(vaishye) and Sudra. There was a time when people were known with samana,bamana and grahasta. Samana who live in forest to find the ultimate truth. Brahmana also search for the ultimate truth but believed that ultimate knowledge can only be attained by Brahmins. But samana were not agree with this theory of attaining ultimate knowledge only by certain sect of the society.