Mrs. Dalloway
There is a moment of intensely vivid imagery, both audio and visual, when Septimus has his pseudo-hallucination which serves very strongly to bring out the motif of interconnectedness. There are many visual moments in Woolf's works (like Orlando and the tree) where interconnectdness is not only limited to human-human interaction, but rather positions humans as a small cog in a massive connection of nature, thoughts, people, and emotions.
"But they beckoned; leaves were alive; trees were alive. And the leaves being connected by millions of fibres with his own body, there on the seat, fanned it up and down; when the branch stretched he, too, made that statement. The sparrows fluttering, rising, and falling in jagged fountains were part of the pattern; the white and blue, barred with black branches," (16)