17.5 Ye, those; janah, persons; who tapyante, undertake, perform; ghoram, severe; tapah, austerity, productive of pain to oneself as also to creatures; asastra-vihitam, not sanctioned by the scriptures; they, being dambh-ahankara-samyuktah, given to ostentation and pride; and kama-raga-bala-anvitah, impelled by the strength of passion and attachment, or possessed of passion, attachment and strength [Kama-raga can also mean desirable objects and the desire to enjoy them.]-.