This is another attempt I'm making to provide a combination of spirituality and soulfulness in two different religious systems.
Could it be that the christian (and jewish and so on) notion of "selling ones soul" implies that the life hereafter will not be determined by the will of the one who has done the selling? In other words: Could "going to hell" mean that the spirit of this life looses all influence over the souls coming lives, by that spirit being too mean to be dealt with? The notion of "purgatory fire" would then perhaps mean that you have a next life in whichyour soul is more or less free to connect to the present one, but you don't have any absolute freedom, until you have no more lessons to learn, i.e. no more (earthly) lifes to be having to live?