LitCharts assigns a color and icon to each theme in Salt to the Sea, which you can use to track the themes throughout the work.
Agency, Willpower, and Fate
Storytelling and Fantasy
Memory and Survival
Family and Community vs. Selfishness
Summary
Analysis
Florian falls into the water. Disoriented, he hears a phantom female voice telling him to Kick and swim. He makes it to the surface, and is rescued by a soldier.
Although the identity of the phantom voice is never revealed, it could easily be the memory or spirit of Florian’s mother, motivating him to continue living.