Definition of Imagery
Woolf uses indeterminate imagery, culminating in mysterious "barrows," to describe the narrator's search to understand the mark:
In certain lights that mark on the wall seems actually to project from the wall. Nor is it entirely circular. I cannot be sure, but it seems to cast a perceptible shadow, suggesting that if I ran my finger down that strip of wall it would, at a certain point, mount and descend a small tumulus, a smooth tumulus like those barrows on the South Downs which are, they say, either tombs or camps.
Compared to the existential horrors of war and human fickleness, nature is a source of comfort and a refuge for both Woolf and the narrator. In particular, tree imagery becomes a reservoir of calm for the narrator in the midst of her otherwise scattered, at times nihilistic thoughts:
Unlock with LitCharts A+For years and years [trees] grow, without paying any attention to us, in meadows, in forests, and by the side of rivers - all things one likes to think about. The cows swish their tails beneath them on hot afternoons; they paint rivers so green that when a moorhen dives one expects to see its feathers all green when it comes up again.