Category:Bhagavad-gītāModes of nature
"This threefold austerity, performed with transcendental faith by men not expecting material benefits but engaged only for the sake of the Supreme, is called austerity in goodness."
"Penance performed out of pride and for the sake of gaining respect, honor and worship is said to be in the mode of passion. It is neither stable nor permanent."
"Penance performed out of foolishness, with self-torture or to destroy or injure others, is said to be in the mode of ignorance."
https://vedy.online/en/bg/17/17/ & https://vedy.online/en/bg/17/18/ & https://vedy.online/en/bg/17/19/