Why are you playing with words? when you know that quran is shalow enough not to go beyond kafir and faithfulls to answer (scientifically enough)why we are here and how we should well utilise our lives by respecting everything around us, rather than looking at the world in black and white and kafirs and faithfull.
in simple words soul is energy and follows the same principle as energy.
This was documented in Geeta and Vedas 15000 years ago, but you prophet didnt even have an inkling of it 1500 years ago
