Suppose we are to believe that the soul exists. If the body is extinguished upon

Suppose we are to believe that the soul exists. If the body is extinguished upon death, then is any type of afterlife in which the soul survives impossible? To me, the body is the soul's material basis; the soul is the functioning of the body. Consequently they cannot be regarded as separate since they are but separate names referring to a single object. For example, the soul is to the material basis as sharpness is to a knife; the body is to its functioning as knife is to sharpness. "Sharpness" does not name knife nor "knife" sharpness. Nevertheless, without sharpness, there is no knife; and without a knife, there is no sharpness. I have never heard of sharpness surviving the destruction of a knife; how then can we accept that the soul survives after the body has died? Or is soul something else?

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