This is a spiritualistic concept... There are various classes of soul transference phenomena.
http://www.witchvox.com/vn/vn_detail/dt_gr.html?a=usor&id=42357
http://www.witchvox.com/vn/vn_detail/dt_gr.html?a=usor&id=42356
http://groupspaces.com/switch-bodies-spiritually/
https://groups.yahoo.com/neo/groups/spiritual-vessel-transference/info