The quest for the meaning of life
All throughout Life of Pi, characters are seeking the meaning of life. The primary seeker for this profound truth is, of course, Pi himself. As the first chapter notes, as an adult Pi studies both science (zoology specifically) and religion at colleges. These interests are both the natural extension of how Pi passed his time while he was a boy: he was the son of a zookeeper but also a devotee of several religions, seeking direct knowledge of God from an early age. Both practices seek to understand the mysteries of human existence.
However, these early interests had to have been heightened by Pi's traumatic time on the lifeboat. When his father decided to move his family from India to Canada, this choice would have stripped many of the customary answers away from Pi. He was to be exposed to new things and would have to make sense of even more of the world in unfamiliar and unexpected ways. When the Tsimtsum sank, not only was Pi shoved face to face with the unknown, but he also lost his family, the core of his human context. Instead, he had to try to survive. For his months at sea, simple survival was the essence of Pi's existence.
Once Pi had passed through his ordeal, he had to adapt again, this time back to being part of a human society rather than part of the strange man-beast society that he had known on the lifeboat. When Pi returned to human society, he had to live with some of the choices he made. He had been a vegetarian; he became a carnivore. He had eaten animal feces. He had eaten human flesh. What does Pi's life mean when he transgresses so many of his early values? That is the question Pi tries to answer on a regular basis.
The centrality of stories in making sense of life
In Life of Pi, the question "Who am I?" is answered by a story: the story of a name. Pi's identity changes many times, beginning with the story of his name. (As Pi himself says at the start of Chapter 5, "My name isn't the end of the story about my name.") When he shortens his name from "Piscine" with the many jokes made about "Pissing" to "Pi," he was freed to be himself—and mysterious. When Pi encountered the Christian god, he was troubled not just by the content of the story the Christians told but also by the fact that there was only one core story, told again and again.
When Pi was lost at sea, he told and retold the story of what was...
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