There is a debate in the paranormal as to what a ghost really is. While the more common belief is that it is the spirit of a person who was once living, there are other explanations on the table. From us manifesting our own activity, time slips, alternative dimensions, psychic projection through to us just making it up all up in our mind, there are many different areas that people spend their time researching. In order to look forward, first we must look where we have been. For centuries, people have believed that a ghost or spirit is the soul of a person who was once living. So let's explore the very concept of our soul and where these beliefs stem from.