LitCharts assigns a color and icon to each theme in To the Lighthouse, which you can use to track the themes throughout the work.
Time
The Meaning of Life
The Nature of Interior Life
Art and Beauty
Gender
Summary
Analysis
Inside a parenthesis, Macalister’s boy cuts a chunk of flesh from the body of a still-living fish to use as bait for a fishing hook and throws the gouged body into the ocean.
Juxtaposed with Lily’s philosophical meditations, Macalister’s boy’s action and cutting a chunk off the still-living reminds the reader that life is also just a matter of flesh, blood, and consumption, and that it can be brutal.