LitCharts assigns a color and icon to each theme in Life of Pi, which you can use to track the themes throughout the work.
Survival
Religion and Faith
Storytelling
Boundaries
Summary
Analysis
Pi longs for a book, particularly a book of scripture. He takes notes in the little diary, but soon they grow scattered and lose track of dates or time. He mostly writes about practical things like the weather and Richard Parker’s activities.
We have briefly seen Pi’s love of reading through the scene where his mother offers him books. Pi especially wants a story that is worth revisiting over and over, like a religious scripture.