Bhashya
आत्मनि प्रजापतौ बुद्धौ च हृदि च एका देवता;तस्याः आत्मन्वी आत्मवानिति विशेषणम् ; फलम्- आत्मन्वी ह भवति आत्मवान्भवति, आत्मन्विनी हास्य प्रजा भवति, बुद्धिबहुत्वात् प्रजायां संपादनमिति विशेषः ।स्वयं परिज्ञातत्वेन एवं क्रमेण प्रत्याख्यातेषु ब्रह्मसु स गार्ग्यः क्षीणब्रह्मविज्ञानः अप्रतिभासमानोत्तरः तूष्णीमवाक्शिरा आस ॥
In plain words
In the self, in Prajāpati, in the intellect, and in the heart resides a single deity. Its defining attribute is 'possessor of the self.' The reward is that the meditator himself becomes possessed of the self, and his descendants too become possessed of the self—the plurality of minds explaining how the quality extends to the progeny. Thus, as one after another of his proposed conceptions of Brahman was refuted and stripped away, Gārgya found his knowledge exhausted and no further answers coming to mind. He sat in silence, with his head bowed down.
Close to the Sanskrit
In the self, in Prajāpati, in the intellect, and in the heart, there is one deity. Its attribute is 'possessor of the self', 'possessor of the soul'. The fruit is: he becomes possessor of the self, he becomes possessor of the soul, his progeny becomes possessing the self; the particular is the accomplishment in progeny due to plurality of intellects. Thus with these proposed Brahmans having been rejected in order as being fully known, that Gārgya, with his knowledge of Brahman exhausted, with no answer appearing, sat silently with his head hanging down.