According to what is scientifically known, there's a strong relation between our previous existences as a soul and our current life. The implications of this fact can be seen in our karmic experiences, our suppressed skills, our fears and, most importantly, our dreams, needs and ambitions in this present life. Talents that we manifest since a very young age, sometimes demonstrating a technical potential that most people need to train and develop to achieve, fits the explanation provided here. This hidden source, when properly revealed and assimilated, helps in developing many qualities that otherwise would remain unseen. In fact, it's not as important knowing who we were as it is rediscovering what we knew, because when experiencing a new life this is what matters the most.