[Carol]

I liked Ajahn Sumedho's "It’s not necessary to know who it is that knows—because there’s knowing."

As to the emptiness, I much prefer the Theravada view from this article as opposed to views that make emptiness out to be essentially God. "Empty of self or self-nature" is just where to focus to see that the nature of all transient things is the same, without self-essence or separate existence.