What is the moral of the mouse in the first story of "The Fantasy Drifting of Pi"?

Put it another way. It is said to be his first girlfriend. His girlfriend sneaked on the boat, so she has been hiding in the lifeboat. At the same time, her girlfriend also robbed him of biscuits and water, and finally sent her out of her mind and killed her (the tiger ate the mouse). Later, he was sent to an uninhabited island to complete the supplies and bodies on board (sailor-zebra, hyena-chef, orangutan-mother). When you are hungry, you start eating your girlfriend's body. Roots represent blood vessels. He also tied the rope his girlfriend gave him to the trunk of the uninhabited island. At this time, his girlfriend had maggots, and those mongooses were maggots. When he ate his girlfriend's teeth (the teeth were wrapped in lotus flowers), he was sent to ask at first. Girlfriend's stomach is those small pools (fishbone refers to undigested food in the stomach). Later, he realized that it could not be like this, so he defeated the beast rationally. He called the tiger back to continue drifting, and when he left, the island became a girl's shape, further indicating that his girlfriend was an uninhabited island. Later in Canada, he married someone else instead of his first love.

It is said that mice and tigers are both pies, but mice represent panic and tigers represent evil. When Pai threw the mouse to the tiger to eat, Pai became a real tiger, no longer escaping, no longer panicking, no longer weak.

Some people say it is an ordinary mouse, or it represents stowaways, because in the west, mice can represent stowaways. Another possibility is that he ate human flesh to minimize his psychological disadvantage.