hope of resilience?

This beautiful book recounts the life of two sisters, as a result of the tragedy they experienced in their childhood and their attempt to survive each taking a radically different way. This raises many questions: how to continue to live and can we have the hope of having a happy life after such a disaster. Will he, in the words of Boris Cyrulnik possibility of resilience? If so, what paths it can take? How, even before the tragic event reactions can be as opposed to the 2 sisters who - also - love tenderly? What place does the secret in a family history? Is forgiveness possible?
It is a book full of sensibility and thought-provoking.