realted with the first on which is I have a question what does the mole learn from himself through out the book? what causes those changes?

The mole learns that adventure is a good thing, he learns that it is enjoyable to come out of your shell..... to explore. He learns that he is brave, he learns that it isn't always good to be impetuous. Most of all, he learns the importance of having friend.... companions to share things with.