Reincarnation: try Ian Wilson's All in the Mind?, chapter on author Ada F. Kay and her belief that she is the reincarnation of James IV of Scotland, but also in a way shares mind/body space with him. Gets up in the morning and decides what she's going to wear based on who she/he is. When she took a rest cure at some resort or other, staff had to address her as "Your Highness". Etc.
Sharing space with spirits: my main sources on this subject are old Spiritualist texts and publications. There is some stuff about it at http://www.prairieghosts.com/florence.html regarding one of the most famous mediumship-as-multiplicity relationships, between Florence Cook and Katie King. (You might also check them out on the Lurancy Vennum thing, http://www.prairieghosts.com/watseka.html and there is more about that at http://www.webspawner.com/users/thewatsekawonderinve/)
A good deal of modern psychiatry and psychology originated in the seance room. It's not necessarily that the doctors believed there were actual spirits around, but that they might learn more about the way the mind works by studying mediums. A little-known fact about the Doris Fischer thing is that when she seemed to be having continued problems after supposedly being "integrated", her doctor took her to a spirit medium that he considered very reliable (that is, she'd never been caught faking). This woman believed that Doris was a victim of spirit obsession and that there were forty or fifty spirits duking it out for ownership of her body. Something like that. Must have been very exciting. And of course there's Helene Smith (http://www.astraeasweb.net/plural/fromindia.html).
You might try this site just in general: http://www.survivalafterdeath.org/home.htm
no subject
Sharing space with spirits: my main sources on this subject are old Spiritualist texts and publications. There is some stuff about it at http://www.prairieghosts.com/florence.html regarding one of the most famous mediumship-as-multiplicity relationships, between Florence Cook and Katie King. (You might also check them out on the Lurancy Vennum thing, http://www.prairieghosts.com/watseka.html and there is more about that at http://www.webspawner.com/users/thewatsekawonderinve/)
A good deal of modern psychiatry and psychology originated in the seance room. It's not necessarily that the doctors believed there were actual spirits around, but that they might learn more about the way the mind works by studying mediums. A little-known fact about the Doris Fischer thing is that when she seemed to be having continued problems after supposedly being "integrated", her doctor took her to a spirit medium that he considered very reliable (that is, she'd never been caught faking). This woman believed that Doris was a victim of spirit obsession and that there were forty or fifty spirits duking it out for ownership of her body. Something like that. Must have been very exciting. And of course there's Helene Smith (http://www.astraeasweb.net/plural/fromindia.html).
You might try this site just in general:
http://www.survivalafterdeath.org/home.htm
Luck,
Jay