The soul dies when you sin and most folk have lost their soul because of their sin..if you walk past a neighbour mowing grass on the day of rest and dont kill him that is automatic loss of your soul.
You need to contemplate on what is the soul, what is its source, and what is meant by death, with regard to the soul.
The concept of a soul goes way back (I read up about it as can everyone) and is no more than a superstition that has endured over many a campfire and been ammended many times and is now yet another unsupported myth that sits nicely with all the other unsupported myths.
If that is what you understand about the soul, so be it.
jan.