What metaphors are used in Our Fathers by Andrew O'Hagan?

The narrative has a sense of self-discovery. The reader is given the notion that, while Jamie was content in England, he unknowingly has been hiding from any self-identity resembling Robert or Hugh. He has also lived with a firm decision never to have any children of his own—although towards the end of his journey, he discovers another part of himself and realizes he could actually make a good father, despite past circumstances.