Chapter 8 · The Imperishable Absolute · Krishna said
Bhagavad Gita 8.9 — The nature of the Supreme
कविं पुराणमनुशासितार- मणोरणीयंसमनुस्मरेद्यः। सर्वस्य धातारमचिन्त्यरूप- मादित्यवर्णं तमसः परस्तात् ॥
kaviṃ purāṇamanuśāsitāraṃ aṇoraṇīyaṃsamanusmaredyaḥ | sarvasya dhātāramacintyarūpaṃ ādityavarṇaṃ tamasaḥ parastāt ||
Meaning
One who remembers the all-knowing, ancient ruler, subtler than the subtlest, sustainer of all, of form beyond thought, radiant like the sun and beyond darkness —