I just had an OBE last night. It actually occurred because I woke up at 4 or 5 am and then fell back to sleep. I've been thinking a lot about OBE recently and maybe it was engrained into my subconscious enough to become reality while sleeping. I don't remember leaving my body (maybe because I was too tired to focus) but I could clearly remember it and I know it wasn't a dream because I remember walking through a wide dark hallway and a female with dark hair teleported in front of me but then walked in front of me. I could see through them- like the ghosts you see in the movies. I was consciously trying to interact with this other person and at the time I didn't realize where I was (in an OBE) and thought it was a ghost. So I tried clearing the ghost by thinking- By the power of Archangel Michael....". I could telepathically communicate and think but then I wanted to speak the words. Then I couldn't speak. I was frustrated because I didn't know where I was. I could think the words but I couldn't open my mouth to speak in the OBE. I tried to touch the person on the shoulder but my hand went through the "apparition". They turned around (since I was following them) and they looked at me and smiled. Then I tried to speak again and was so frustrated I suddenly entered my body and heard myself mumble tongue-tied words while I woke up. I guess speaking with your mouth is a function of the physical body and not an OBE.
I read this here to confirm it:
"More rarely they also claim to be able to influence distant events, although the frustration of being unable to speak to people or touch objects is more common."
From this link: http://psychology.jrank.org/pages/1576/out-body-experience.html
I plan on buying either Robert Bruce or Robert Monroe's book on OBE/Astral Projection