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

manaḥ-pragrahavān naraḥ
so 'dhvanaḥ pāram āpnoti
tad viṣṇoḥ paramaṁ padam
"A person who has transcendental knowledge as his charioteer and who
carefully holds the reins of the mind reaches the end of the path: the
transcendental realm of Lord Viṣṇu."
In these words they are again distinguished: one being the goal to be attained
and the other the person who attains the goal.
Adhikaraṇa 4
The Person in the Eye is the Supreme Personality of Godhead
Introduction by Śrīla Baladeva Vidyābhūṣaṇa
Viṣaya: Chāndogya Upaniṣad 4.15.1-2 says:
ya eṣo 'ntar-akṣiṇi puruṣo dṛśyate sa eṣa ātmeti hovāca. etad amṛtam ayam etad
brahma tad yad yad asmin sarpir vodakaṁ vā siñcati vartmani eva gacchati. etaṁ
sampad-dhāma ity ācakṣate etaṁ hi sarvāṇi kāmāny abhisaṁyanti
"He said: He who is seen in the eye is the ātmā. He is immortal, He is nectar. He
is the greatest. Because He is present neither water nor liquid butter will stay on
the eye, but both will slide from it. He is the abode of all opulences. For one who
sees Him all desires are at once fulfilled."
Saṁśaya: Is this person a reflection, a demigod, the jīva, or the Supreme
Personality of Godhead?
Pūrvapakṣa: It may be the first, for the observer sees himself reflected in
another's eye. It may be the second because Bṛhad-āraṇyaka Upaniṣad (5.5.2) says:
raśmibhir eṣo 'smin pratiṣṭhitaḥ (With the rays of sunlight the sun-god enters the
eye). It may be the third because a person sees with his eyes, so he may also be the
person in the eye. In this way the person in the eye is one of these three.
Siddhānta: The conclusion follows.
Sūtra 13
antara upapatteḥ