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
“Well, we must wait for the future to show,” says Mr. Bankes on the terrace. Andrew, Prue, and Lily come up from the beach in the darkness. They turn out all the lamps in the house so that everything is dark except for Mr. Carmichael’s room, where he is awake reading Virgil.
Isolated, Mr. Bankes’ casual comment—presumably made to bow out of his political argument with Mr. Tansley—seems to describe the passage of time itself.