गोविन्द भाष्य (श्रील बलदेव विद्याभूषण - अचिन्त्यभेदाभेद वेदान्त ब्रह्मसूत्र भाष्य सटीक)

Pūrvapakṣa (the opponent speaks): As a person entering a king's capitol resides
in the same city as the king but does not attain a private audience with the king, so
the liberated soul resides on the same planet with the Lord. Therefore the soul
attains sālokya liberation
Siddhānta (conclusion): In the following words the author of the sūtras gives
His conclusion.
Sūtra 4
avibhāgena dṛṣṭatvāt
avibhāgena—without separation; dṛṣṭatvāt—because of being seen.
There is no separation, for that is seen.
Purport by Śrīla Baladeva Vidyābhūṣaṇa
The liberated soul is not separated from the Lord. In this way the soul attains
sāyujya liberation. Why is that? The sūtra explains, "dṛṣṭatvāt" (for that is seen).
This means, "for this situation is seen in the Śruti-śāstra". For example, in
Muṇḍaka Upaniṣad (3.2.8) it is said:
yathā nadyaḥ syandamānāḥ samudre
astaṁ gacchanti nāma-rūpe vihāya
yathā vidvān nāma-rūpād vimuktaḥ
parāt paraṁ puruṣam upaiti divyam
"As flowing rivers abandon their names and forms and meet with the sea, so the
enlightened soul, free of what had been his name and form, meets with the
effulgent Supreme Person."
That the word "sāyujya" means "meeting" is seen in the following passage of
the Mahā-Nārāyaṇa Upaniṣad (25.1):
ya evaṁ vidvān udag-ayane pramīyate devānām eva mahimānaṁ gatvādityasya
sāyujyaṁ gacchati
"The soul that dies during the six months when the sun travels in the north