Soul and body in conflict - body always wins?

Just a thought I got from reading author Orson Scott Card's book 'Children of the Mind'. Stupid stuff really but anyway:

Could life be seen as the constant struggle between body and soul, where the body (containing the soul) slowly decays and finally kills the soul, which has nowhere to go and no one to connect to?

How do we make the soul win? Stopping the process of aging? Or can the soul win during life? What would define the soul winning? Is it perhaps our own ambitions that define the win situation for the soul?