There is no question in my mind that our bodies are not really us. They are just temporary vehicles for the real us. You can call it soul, but I prefer to call it spirit. I believe our spirits are eternal. They have always existed and will never die.
The problem with saying this of course is that there is no way for me to prove it, because we can't see our spirits. We can only see our physical bodies and that is why some of us doubt a person is still alive after his/her body dies.
Death is simply a separation of spirit and body. I have good reasons to believe that our spirits will one day reunite with our bodies, except our bodies will then be perfect and immortal. That's what I like to call the soul: the spirit and body after the resurrection.
We will then be given a place that best fits us, according to the attributes we developed during our short lives (the fact that we cannot see things that are made of the spirit makes our life test perfectly fair). This belief motivates me to work on developing my character because my character is the only thing that I will take with me after this life.