Aleph by Paulo Coelho

Starting in Africa, then crossing Europe and Asia via the Trans-Siberian Railway, he undertakes a journey to revitalise his energy and passion.  Even so, he never expects to meet Hilal.  A gifted young violinist, she is the woman Paulo loved 500 years before and the woman he betrayed in an act of cowardice so far-reaching that it prevents him from finding real happiness in his life.  Together they will initiate a mystical voyage through time and space, travelling a path that teaches love, forgiveness and the courage to overcome life's inevitable challenges.