। ॥ १५ ॥
In plain words
So begin the inquiry into who you really are. Find a teacher whose compassion runs as deep as the ocean, one of the foremost knowers of Brahman — and go to him.
Close to the Sanskrit
Therefore, inquiry into the reality of the Self should be undertaken by the seeker, having approached a teacher who is an ocean of compassion, the foremost among knowers of Brahman.