Soul Swapping, Another Me in the Parallel World

Where do we come from and where do we go? I don't know if you have ever felt this way. Sometimes we always have strange dreams. When we wake up, it seems that we have experienced what happened in our dreams. Everyone we have met has a similar feeling of deja vu. Have you ever thought about why? Is there another you in parallel time and space who is experiencing a story different from yours? When time and space intersect and souls are exchanged, what kind of life will you experience? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.