Sorry, but I think some of you are a bit too fast. OBEs exist, people have them, and it is an issue to explain them. The ‘it is just an illusion’ and ‘see a psychiatrist’ will not do. Do not forget that the ‘E’ of OBE stands for ‘experience’. Having an experience is one, taking the simplest interpretation is two. There are two too simple answers on the question of what OBEs are: the above ‘it is just an illusion’, and the ‘I know I have a soul, I saw I floated above my body, I saw it’.
The fact that people have them, and that they experience them as real, or even more real than normal daily experience, says something about our mind. A theory of mind that is advanced enough must explain why people have these experiences.
As a parallel: to say that the aura that people with migraine have is ‘just an illusion’ is hardly an explanation. And it needs an explanation, as many migraine patients see them:

Understanding at least a part of the neural mechanism behind migraine made it possible to generate such auras on the computer, based on a neural simulation. That is really a part of understanding auras. If you don’t know anything about OBEs, then please keep your mouth shut, and do not annoy somebody as you did with OGMONKEY. He even deleted his posting, so I cannot even read it anymore.
Your reactions are as stupid as that of a new age believer. You just stick to what you prefer to believe.
For literature about OBEs from a skeptical and scientific viewpoint, see for example:
“Beyond the Body: An Investigation of Out-Of-The-Body Experiences”, by Susan Blackmore (well known skeptic, who had an intensive OBE herself)
“The Ego Tunnel - The Science of the Mind and the Myth of the Self”, by Thomas Metzinger (philosopher, had several OBEs and lucid dreams)