बहिरन्तश्च भूतानामचरं चरमेव च।सूक्ष्मत्वात्तदविज्ञेयं दूरस्थं चान्तिके च तत्॥
bahir antaś ca bhūtānām acaraṃ caram eva casūkṣmatvāt tad avijñeyaṃ dūra-sthaṃ cāntike ca tat
Word by word
The verse says
Outside beings and inside them; unmoving and moving; too fine to be made out; far away, and close.
In plain words
Four pairs, and the last one is the one that stays with you.
Dūra-sthaṃ cāntike ca — standing far off, and near.
Not in between. Both, fully.
Where you've felt this · in health
You cannot see your own eyes. They are the closest things in your life to you and you have never once looked at them directly, only at a reflection. Nothing is further from your view than the thing you are viewing with.
Going deeper
Far and near together is the pair that explains why this is hard to find, and it is not a paradox for its own sake.
Something is hard to see when it is far away. Something is also hard to see when it is too close — when it is the lens rather than the view. The verse claims both at once, and the second half is the one that accounts for the ordinary experience of looking for this and finding nothing.
Chapter 10 made the same point with the smallest item in its list, the letter A, which is inside every word and therefore never noticed as a word.
And it reframes the search in a way that is more encouraging than it first sounds. If what you are looking for is too close rather than too far, then the problem is not distance, effort or access. It is that looking is the wrong motion, because the thing is on the near side of the looking.