Carl Fredricksen died in his sleep after he notified that he needs to leave his house and move to a retirement home.
Everything that happened afterwards represents Carl's journey trough the afterlife.
Russell represents Carl's guardian angel, who is trying to 'earn his wings' or final badge by helping Carl with his transition.
Russell took the form of a child to fulfill Carl and Ellie's desire / inability to have children.
The house itself represents Carl's attachment to the physical world with Paradise Falls being Carl's perceived representation of Heaven.
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Cartoon Theories
Mystery / Thriller×Warning: Reading this story may destroy your childhood. Continue reading at your own risk.× We're telling you, once you start noticing this shit, the world becomes a darker place. We really love fan theories, specifically about Disney movies. They...
