Richard Holmes said this quote

There is a goddess of Memory, Mnemosyne; but none of Forgetting. Yet there should be, as they are twin sisters, twin powers, and walk on either side of us, disputing for sovereignty over us and who we are, all the way until death.

~ Richard Holmes

Physical vision - one might say scientific vision - brings about a metaphysical shift in the observer's view of reality as a whole. The geography of the earth, or the structure of the solar system, are in an instant utterly changed, and forever. The explorer, the scientific observer, the literary reader, experience the Sublime: a moment of revelation into the idea of the unbounded, the infinite.

~ Richard Holmes