मूढग्राहेणात्मनो यत्पीडया क्रियते तपः।
परस्योत्सादनार्थं वा तत्तामसमुदाहृतम्।।17.19।।
।।17.19।। जो तप मूढ़तापूर्वक स्वयं को पीड़ित करते हुए अथवा अन्य लोगों के नाश के लिए किया जाता है? वह तप तामस कहा गया है।।
Now Lord Krishna explains the austerities that are of tama guna or mode of ignorance. The word mudha means foolish. The word grahena means endeavour. Those who foolishly endeavour are the ignorant. Those who torture and give pain to themselves and diabolically cause injury and suffering to others are depraved and their dark resolves are at the pinnacle of nescience. Whatever activity they enact by such convoluted resolves regardless of success or failure is in the darkness of tama guna.