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

Sūtra 26
prakāśaś ca karmaṇy abhyāsāt
prakāśaḥ—appearance; ca—and; karmaṇi—in activity; abhyāsāt—by repetition.
And when the activity is repeated, then He appears.
Purport by Śrīla Baladeva Vidyābhūṣaṇa
The word "ca" (and) is used here to dispel doubt. When activities like
meditation and worship are repeated, then the Lord appears. In the Dhyāna-bindu
Upaniṣad (18) it is said:
dhyāna-nirmathanābhyāsād
devaṁ paśyen nigūḍhavat
"By repeated meditation one is able to see the Supersoul hidden in the heart."
By repeated meditation one develops love for the Lord, and at that time one is
able to see the Lord. However, in the Brahma-vaivarta Purāṇa it is said:
na tam ārādhayitvāpi
kaścid vyaktī-kariṣyati
nityāvyakto yato devaḥ
paramātmā sanātanaḥ
"No one, simply by engaging in worship, can force the Lord to become visible.
To a person who tries to force Him in this way, the eternal Lord is always
invisible."
The worship described here is worship performed without sincere love for the
Supreme Lord.
Here someone may object: Is it not true that the Supreme Lord is present within
everything? If He is present within, then it is a contradiction to say that He can
come out. He remains within and He does not come out. Therefore the statement
that the Supreme Lord comes out and becomes directly visible is a collection of
meaningless words, words that contradict the truth that the Lord is always present