I believe that the mind and the brain are distinct things, while the mind and the soul are the same. However, memory is pretty clearly located inside the brain... which means that we lose our memory when we die. That would imply that the purpose of our life here is only to educate our soul... to transform us into better people. It also means that we do not know who we were or what we did - which would be good, because otherwise a lot (most? all?) of us would have to somehow come to terms with the shame of what we did. Not really compatible with heavenly bliss.
No basis in anything, really, just some idle speculation.