Other forms: reimagining; reimagined; reimagines
To reimagine is to have a new idea about something familiar. If you've always thought one way about what something means, what it's worth, or how it could be made — but now you see it differently — you've begun to reimagine it.
Perhaps you can't imagine your piano lessons ever being worth your time. But if you go to a concert and listen to your favorite pop artist jamming on the keyboard, you might reimagine their value! A young child might make up a silly story about a rhinoceros who wants to be a mouse. As an adult writer, that former child may reimagine the story into a fable about how a rhinoceros learns to understand his own worth rather than longing to be different.