Bhashya
पृष्ट आदित्य इति होवाच ।सर्वाणि ह वा इमानिभूतानि आदित्यम् उच्चैः ऊर्ध्वं सन्त गायन्ति शब्दयन्ति,स्तुवन्तीत्यभिप्रायः, उच्च्छब्दसामान्यात्, प्रशब्दसामान्यादिवप्राणः ।अत सैषा देवतेत्यादि पूर्ववत् ॥
In plain words
When asked, he replied: The sun. All these beings exist on high and sing to the sun—meaning they praise it, owing to the shared sense of elevation, much like prāṇa. Therefore, this deity is to be understood as explained before.
Close to the Sanskrit
Asked, 'It is the sun', he said. All these beings, being high above, sing to the sun, they make sound, the intent is they praise, due to the similarity of high sound, like the prāṇa from the similarity of pra. Hence this deity and so on as before.