I think the soul does not interact with matter (or if it does, it can not be perceived or proved because of its non material nature), i also think the soul has nothing to do with memories or emotions, since these things are just cognitive processes, chemicals, etc.
Now the soul could be just the fact of our existance, it fulfills the "requirements", its eternal, goes beyond the material plane, and these fact or chunk of space/time is real and fits the world of quantum physics, which say that all times are equally real (do the research yourself, to lazy to explain it now, its late here =P) so if you existed one moment, you left a "blueprint" of your existance, now you may say: "Dats d pazt, it iz not real rite naaauuu", wrong, like i said all the times are equally real. That could be the soul, or maybe its soemething thats not material and doesnt affect us in a material way (in other words, no feelings, no emotions, no memories has nothing to do with our soul, it doesnt matter whic of these 2 cases its true, if one of these are true of course). Thats what i think (idea, not belief, just stating a probability).
ps: remember that everything is posible if we say its beyond the material plane (with material plane i mean all the facts, including mind, cognitive processes, etc.), so even the most twisted and, like Q likes to say, mumbo jumbo belief of a god with a white beard with maracas could be true, as long it doesnt iterfere with facts of the material plane (altough even these facts can be questioned because we percieve them, and our perception its not absolute, so almost nothing could be sentenced as completly real or unreal)
there is my grain of knowledge, destroy/re-create/manipulate as you want as long as we find someting that can be called a truth about this theme =D
Now the soul could be just the fact of our existance, it fulfills the "requirements", its eternal, goes beyond the material plane, and these fact or chunk of space/time is real and fits the world of quantum physics, which say that all times are equally real (do the research yourself, to lazy to explain it now, its late here =P) so if you existed one moment, you left a "blueprint" of your existance, now you may say: "Dats d pazt, it iz not real rite naaauuu", wrong, like i said all the times are equally real. That could be the soul, or maybe its soemething thats not material and doesnt affect us in a material way (in other words, no feelings, no emotions, no memories has nothing to do with our soul, it doesnt matter whic of these 2 cases its true, if one of these are true of course). Thats what i think (idea, not belief, just stating a probability).
ps: remember that everything is posible if we say its beyond the material plane (with material plane i mean all the facts, including mind, cognitive processes, etc.), so even the most twisted and, like Q likes to say, mumbo jumbo belief of a god with a white beard with maracas could be true, as long it doesnt iterfere with facts of the material plane (altough even these facts can be questioned because we percieve them, and our perception its not absolute, so almost nothing could be sentenced as completly real or unreal)
there is my grain of knowledge, destroy/re-create/manipulate as you want as long as we find someting that can be called a truth about this theme =D