Final answer:
In 'Rain Reign', Rose tells Parvani to think of the homonym 'rain' to make her feel better.
Step-by-step explanation:
In the book 'Rain Reign' by Ann M. Martin, Rose tells Parvani to think of the homonym 'rain' to make her feel better. It is a play on words as the protagonist's name is Rose and rain is a recurring theme throughout the story. By thinking of rain, Parvani can find solace and comfort.