Human Soul?

Chris brings up many stimulating thoughts, but I am caught on this: "It wouldn't be too much to say that many of our peers probably doubt they even have a soul." Well, yes. If everyone agreed that we had a soul, then we would be preoccupied with trying to satisfy this part of our life. The soul is fascinating. We are comprised of three parts: body, mind, and spirit... right? Okay, where does the spirit dwell? Could this just be a state of mind? Hmm...

My desire is to better understand our soul issue. There are several assumptions that I need to state before the argument ensues. First, every human being has a soul (if you disagree, please let me know). This includes mentally handicapped and unborn human beings (different issue, but important none the less). This soul resides in our physical body while alive on earth. It is eternal, but I believe that it was created upon conception. Upon death, the soul goes somewhere; I would argue that is either heaven or hell.

Now, what evidence to we have to support the claim that a soul resides in us? This is not a tangible entity. We cannot separate it from the body, nor can we see it in the body. I would argue each person has a soul, but I am afraid I have very little evidence to support my assertion.

I need your help.