अशास्त्रविहितं घोरं तप्यन्ते ये तपो जनाः।
17.5. Those men, who practise terrible austerities, not as enjoined in the scriptures; who are bound to hypocricy and conceit, and are endowed with (i.e. impelled by) the force of passion for the desired objects;
17.5 See Comment under 17.6
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