In restricted existence, from the moment you are embodied, that is, from the moment you are born, there is a bond between your body and your consciousness (your soul). This bond does not disappear until the body is completely unusable. This connection is called a silver thread and it is a white energy as long as the tip of a needle, infinitely long. When you separate your consciousness (your soul) from your body, you return to your body again smoothly thanks to this bond. No being except God can break this bond from you.