Guṇa-Traya-Vibhāga Yoga · Verse 9
सत्त्वं सुखे सञ्जयति रजः कर्मणि भारत | ज्ञानमावृत्य तु तमः प्रमादे सञ्जयत्युत
sattvaṃ sukhe sañjayati rajaḥ karmaṇi bhārata | jñānam āvṛtya tu tamaḥ pramāde sañjayaty uta
Luminosity attaches to happiness, activity to action, O Bhārata!; but inertia, covering knowledge, attaches to heedlessness.
The modes of attachment differ for each guṇa. Sattva gravitates toward pleasant, refined experiences. Rajas compulsively acts. Tamas sinks into oblivion.
Jñānam āvṛtya — covering knowledge — is the specific function of tamas. Where sattva reveals and rajas agitates, tamas conceals.
The three guṇas are not merely individual tendencies but cosmic principles. Every phenomenon expresses their interplay.