How does Cassia realize that she and her mother are alike?

Cassia is getting ready for the next stages of her life. She is taking the tests to see what job she should have, and she is excelling. Meanwhile, at home, her mother is dealing with some very stressful situations. She doesn't share them with the family, however. Cassia appreciates the fact that her mom protects them, and she knows the two of them are alike in the way they keep secrets.