You have a life, you do actions which improve your life (or make it worse) and you have to live with such consequences. You 'level' up, gaining experience everytime you do something good or bad. You learn a bit more about yourself, the world, people, and what to do or do not do. Some people have a second chance, they have a second heart, they have a second shot. But do they make the most of it? It is hard trying to get up, after someone has pierced your only heart, and the metaphorical heart you now have is not really your own. It is a proxy. It can never replace the pure, innocent heart you once had and was shattered to bits by someone or some event.