In plain words
Discern that knowledge which always is: steady, imperishable, without any division, never to be thought of as ‘such and such a thing’. It is one and without parts. It shines with no cause behind it and no example that could show it.
Word for word
Discern the unified, partless knowledge which shines ever existent, stable and imperishable, without differentiation, not thinkable as ‘this kind of thing’, and without a cause or illustrative comparison.