Sanskrit
तमस्त्वज्ञानजं विद्धि मोहनं सर्वदेहिनाम् । प्रमादालस्यनिद्राभिस्तन्निबध्नाति भारत ॥
tamas tv ajñānajaṃ viddhi mohanaṃ sarvadehinām pramādālasyanidrābhis tan nibadhnāti bhārata
Translation
But Inertia, know thou, born of unwisdom, is the deluder of all dwellers in the body; that bindeth by heedlessness, indolence and sloth, O Bhârata.
Annie Besant · The Bhagavad-Gita, translated by Annie Besant (4th ed., 1922) — Wikisource · Public Domain
Explanation
Tamas defined, completing the triad begun at verse 6: born of unwisdom itself, it deludes and binds through negligence, indolence, and sleep. With all three now defined, the shape of the argument is visible — sattva binds through refined attachment, rajas through craving-driven action, tamas through sheer inertia — three qualitatively different chains, not a simple better-worse-worst ranking, even though verse 18 will later map them onto upward, middle, and downward destinies. Tamas is ajñāna-ja, born of not-knowing, and it binds by pramāda (heedlessness), ālasya (indolence), and nidrā (sleep) — the collapse of both the clarity of sattva and the drive of rajas. It is the guṇa of things left undone.
Study deeper
Word by word
- tamas tv ajñānajaṃ viddhiतमस् त्व् अज्ञानजं विद्धि
- know tamas as born of ignorance (tamaḥ + tu + ajñāna-jam + viddhi)
- mohanaṃ sarvadehināmमोहनं सर्वदेहिनां
- deluding all the embodied (mohanam + sarva-dehinām)
- pramādālasyanidrābhisप्रमादालस्यनिद्राभिस्
- by heedlessness, indolence, and sleep (pramāda-ālasya-nidrābhiḥ)
- tan nibadhnāti bhārataतन् निबध्नाति भारत
- it binds, O Bhārata (tat + nibadhnāti + bhārata)
Commentary
Site Commentary
Tamas is the only one of the three gunas defined first by a negation — born of unwisdom, an absence rather than a substance — and its behavioral symptoms, heedlessness, indolence, sleep, only follow from that prior absence of light. Sattva and rajas are both something happening; tamas, by contrast, is what happens by default when nothing else is actively pushing back against it.
Original commentary written for this site · © Amit Singh — original commentary
Concepts
Apply this verse
Lessons
Personal
- When you notice yourself sliding into inertia, don't treat it as a mysterious force to fight directly — treat it as what fills the space whenever nothing is actively pushing back, and put something small and deliberate into that space instead.
Professional
- When a team's output quietly decays with no single dramatic cause, recognize that as tamas's mechanism: absence of active direction, not a positive force, so the fix is reintroducing deliberate direction rather than hunting for a single culprit to blame.
Family & Social
- When a relationship goes quiet and neglected with no single fight to blame, don't wait for a crisis to justify attention — the neglect itself, left unaddressed, is what does the damage, by default, the moment no one actively pushes back against it.
Ask yourself
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