What does the Chestnut tree symbolize in Jane Eyre by Charlotte Bronte? What is your personal rating on the book, by 10?

The chestnut tree symbolizes Jane and Rochester's love. They proclaimed their love for each other under the shade of the chestnut tree, and then it was symbolically split a part by lightning (Grace Poole). None-the-less, the tree although split and burnt remains alive...... just like their love.