2. That which is self-shining, that which is most subtle, but which worlds and their inhabitants depend upon for support, that is indestructible Brahman.
That is the vital force. That is speech and mind. That is the Truth. That is immortal. That alone is the target. Focus, friend.
4. Omkara is the bow, Atman is the arrow, and Brahman is named the goal. That is to be struck by an attentive mind. And as that arrow becomes one with the target, one's Self is known to be Brahman.