I do believe that it does leave the physical body,but I also believe that it stays around the body in a spiritual dimension until it is called to leave for good.
Iam not sure but I know one thing your spirit can leave your body when you go into a deep sleep. And when your trying to wake up your spirit can return to your body.,
I would like to know if the spirit really leave the body after you die and does it go back to the place that they lived in as a child