In plain words
One who has the eye of knowledge sees Brahman, being-awareness-bliss, present in everything. One without that eye does not reach it, as a blind man does not see the sun shining in plain view.
Word for word
One with the eye of knowledge sees Brahman, being-awareness-bliss present throughout everything. One without that eye does not apprehend it, like a blind person not seeing the visibly shining sun. Consider this.