If you listen to the last few minutes of this, she explains the difference between an OBE and a lucid dream. Makes sense to me (they are basically the same, a lucid dream is just a precursor to an OBE which is has been my experience).
http://www.youtube.com/watch?v=oixl1lIiTgo
http://www.youtube.com/watch?v=oixl1lIiTgo