बुद्धिर्विनष्टा गलिता प्रवृत्ति -र्ब्रह्मात्मनोरेकतयाधिगत्या ।इदं न जानेऽप्यनिदं न जानेकिं वा कियद्वा सुखमस्य पारम् ॥ ४८२ ॥
In plain words
My intellect has simply given out, and every outward pull of the mind has melted away, now that I have realized Brahman and I are one. I cannot say I know 'this,' and I cannot say I know 'not-this' either. What is this joy, how much of it is there - where does it even end?
Close to the Sanskrit
The intellect is dissolved, activity has melted away, through the realization of the oneness of Brahman and the Self; I do not know 'this,' nor do I know 'not-this'; what, or how much, is the far limit of this bliss?