Prose-section 31
In plain words
In the cave that is the intellect lies the one reality, Brahman, without a second, other than both being and non-being. Whoever lives always and steadily in that cave of the Heart as that very reality never again enters the cave of a body. For that one there is no more birth.
Word for word
In the cave that is the intellect is the non-dual reality of Brahman, distinct from being and non-being. Whoever always dwells steadily in that cave of the Heart as that reality itself has no further entry into the cave of a body: there is no birth.