Verse 4

स तेन निर्विण्ण इव सदात्मत्वादृते पदम् ।अपश्यन्समुवाचेदमेको गद्गदया गिरा

In plain words

He, as if disenchanted with it, and seeing no station apart from the very state of being the true ātman, spoke this out, alone, in a voice broken with feeling: