अशास्त्रविहितं घोरं तप्यन्ते ये तपो जनाः।
17.5 Those men who practise terrific austerities not enjoined by the scriptures, given to hypocrisy and egoism, impelled by the force of lust and attachment.
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.]-.
Ashaastravihitam ghoram tapyante ye tapo janaah; Dambhaahamkaarasamyuktaah kaamaraagabalaanvitaah.
aśhāstra-vihitam—not enjoined by the scriptures; ghoram—stern; tapyante—perform; ye—who; tapaḥ—austerities; janāḥ—people; dambha—hypocrisy; ahankāra—egotism; sanyuktāḥ—possessed of; kāma—desire; rāga—attachment; bala—force; anvitāḥ—impelled by; karṣhayantaḥ—torment; śharīra-stham—within the body; bhūta-grāmam—elements of the body; achetasaḥ—senseless; mām—me; cha—and; eva—even; antaḥ—within; śharīra-stham—dwelling in the body; tān—them; viddhi—know; āsura-niśhchayān—of demoniacal resolves