ye tv akṣaram anirdeśyam avyaktaṁ paryupāsate sarvatra-gam acintyaṁ ca kūṭa-stham acalaṁ dhruvam
"But those who worship the imperishable, the indefinable, the unmanifested, the omnipresent, the unthinkable, the unchanging, the immovable, the eternal, "
What This Means:
Krishna describes those who choose the impersonal path. They meditate on Brahman, the formless reality that cannot be described, that is everywhere, beyond thought, never changing, and eternally stable.
Going Deeper:
This verse catalogs the attributes of nirguna Brahman (attributeless Absolute): anirdeśya (indefinable by words), avyakta (unmanifested to senses), sarvatra-ga (omnipresent), acintya (beyond conceptual thought), kūṭa-stha (unchanging like an anvil), acala (immovable), dhruva (fixed, eternal). These are valid objects of meditation in the jnana marga (path of knowledge).
How To Apply This:
Some spiritual seekers are naturally drawn to formless meditation, sitting in pure awareness without any object. This is a valid and honored path, though Krishna will explain why it's more difficult.
Key Sanskrit Terms: