मूढग्राहेणात्मनो यत्पीडया क्रियते तपः | परस्योत्सादनार्थं वा तत्तामसमुदाहृतम्
mūḍhagrāheṇātmano yatpīḍayā kriyate tapaḥ . parasyotsādanārthaṃ vā tattāmasamudāhṛtam
那以愚昧的执念，通过折磨自身，或者为了毁灭他人而实践的苦行，被称为惰性（塔玛斯）的。
That austerity which is undertaken with a foolish intent, by causing pain to oneself, or for the destruction of others-that is said to be born of tamas.
这种苦行源于无知和愚昧，其行为方式包括对身体施加极度痛苦，例如用硫磺烧头、用铁钩刺肉、倒吊于火上吸烟、浸泡在冰冷的水中，或以五火苦行（四面点火，以太阳为第五火）等方式折磨身体。这些惰性苦行无法帮助行者获得真我（阿特曼）的知识。
Some burn sulphur in a pot and place it on their head. Some thrust hooks of iron into their flesh. Some hang themselves with their head downwards over fire and swallow smoke. Some stand in cold water immersed up to the neck. Some torture the body by lighting fires on the four sides (with the sun as the fifth fire -- this is known as the Panchagni Tapas). Some sit in the centre of a circle of fire. Such austerities are Tamasic. These will not help one to attain knowledge of the Self.