Uhhh long... weill take me soem time to digest...
Robert Monroe is a guy who had repetetive out of body experinces, so he wrote several books in which he documented them and tried to structure these observations. Pure scientific approach to... basically visiting afterlife and other places. That stuff is hard to belive, but he did perform some experiments to pove it, so it is defently a valid possibility.
Link to his 1st book --->
http://www.amazon.com/exec/obidos/tg/detai...=books&n=507846
Out of Body Experinces (OBE) are a very interesting (and controvercial) phenomenan that has been studied and getting some attention since 50ies I think. Just do a search on it in google for more info. They even have tequnicies that supposed to help you to achive OBE. Very interestign stuff.