How does the author use imagery in the novel, The Woman in Black?

Examples of Imagery:

I had always known in my heart that the experience would never leave me… Like an old wound, it gave off a faint twinge now and again, but less and less often, less and less painfully, as the years went on and my happiness, sanity and equilibrium were assured.
-- Arthur (Christmas Eve)

My head reeled at the sheer and startling beauty, the wide, bare openness of it. The sense of space, the vastness of the sky above and on either side made my heart race, I would have travelled a thousand miles to see this. I had never imagined such a place.
-- Arthur (Across the Causeway)