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

sthāna-viśeṣāt prakāśādi-vat
sthāna—of places; viśeṣāt—from the variety; prakāśa—light; ādi—beginning
with; vat—like.
Like light and other things, so He also is different in different places.
Purport by Śrīla Baladeva Vidyābhūṣaṇa
Although the Supreme Personality of Godhead is one, nevertheless, in different
places and before different devotees He manifests different kinds of opulence,
power, and sweetness. In this way, in the presence of devotees in the various
mellows, such as the mellows of peacefulness, servitude, and friendship, the Lord
manifests many different kinds of forms. He does this in the same way as light or
other things also manifest many different kinds of forms. As the light of a lamp
appears clear or red when reflected from crystals or rubies set in a temple's walls,
and as sound, although originally one, appears different when sounded by a
conchshell, mṛdaṅga, flute, or other musical instrument, so the Supreme
Personality of Godhead manifest sweetness and other attributes according to the
different circumstances. That is the meaning. When the Lord manifests His great
opulence, He is worshiped by the rules and regulations of vidhi-bhakti. That
manifestation is compared to the light reflected from crystal. When the Lord
manifests His great sweetness, He is worshiped by the spontaneous love of ruci-
bhakti. That manifestation is compared to the light reflected from rubies. In this
way the Lord's many manifestations in different abodes and in relation to the
different kinds of devotion of different kinds of devotees, are basically of these two
kinds (opulence and sweetness).
Sūtra 36
upapateś ca
upapateḥ—because of reasonableness; ca—also.
Also because it is reasonable.
Purport by Śrīla Baladeva Vidyābhūṣaṇa