Symbolism, Imagery, Allegory
When the storm comes, it's scary and overwhelming, but it's also an opportunity for Sarah and the Witting family to band together. The storm is representative of a difficult time that could destroy everything—but instead of tearing them apart, the characters come together to make sure they all stay safe and sound. They work together to bring the animals into the safety of the barn, prompting Jacob and Sarah to realize that they can be a good team:
"We have squalls in Maine, too," she said. "Just like this. It will be all right, Jacob."
Papa said nothing. But he put his arm around her, and leaned over to rest his chin in her hair. (8.43-44)
Sarah provides Jacob and the children with some comfort during the storm, helping them all recognize that they're starting to gel together and become a real family. After the storm, they step outside and see that the world has been transformed into something beautiful and magical:
And when it was over we opened the barn door and walked out into the early-morning light. The hail crunched and melted beneath our feet. It was white and gleaming for as far as we looked, like sun on glass. Like the sea. (8.45)
The storm has washed away their uncertainty and awkwardness, and Jacob, Sarah, Anna, and Caleb step out of the barn as a united family. Aw.