पुरुषः स परः पार्थ भक्त्या लभ्यस्त्वनन्यया।यस्यान्तःस्थानि भूतानि येन सर्वमिदं ततम्॥
puruṣaḥ sa paraḥ pārtha bhaktyā labhyas tvananyayāyasyāntaḥ-sthāni bhūtāni yena sarvam idaṃ tatam
Word by word
The verse says
That supreme person, within whom all beings rest and by whom all this is spread out, is reached by devotion given to him and to nothing else.
In plain words
Here is the method, finally stated.
Not the breath at the brows. Not the syllable. Not the timing of the departure.
Bhaktyā ananyayā — devotion with nothing else beside it. That is the only qualification named.
Where you've felt this · in friendship
You are telling a friend something that matters, and her eyes keep going past your shoulder toward the door. Another day, a different friend puts her cup down and turns her whole body toward you. You know which of those is happening inside two seconds, and nobody has ever had to teach you the difference.
Going deeper
Undivided is the word doing the work, and it is not the same as intense.
Ananyā means not-other: nothing else running alongside. It says nothing about volume, emotion or effort. A person can be quiet and undivided, or loud and elsewhere, and the verse is interested only in the first thing.
That is why this arrives after the technical instructions rather than before them. Everything earlier in the chapter can be done while half-attending. This cannot, and it turns out to be the part that matters.
Most people already know the difference from the receiving end. Being listened to properly is unmistakable, and so is being listened to while somebody waits for their turn. The verse asks for the first kind, in one direction, and does not ask for anything else at all.