Lucid Dreaming 1.3

1.3   HOW ARE LUCID DREAMS RELATED TO OUT-OF-BODY EXPERIENCES (OBEs)?
A mysterious and highly controversial phenomenon sometimes occurs in which people experience the compelling sensation that they have somehow "left their bodies." The "out-of-body experience" or "OBE", as this fascinating phenomenon is usually termed, takes a variety of forms. In the most typical, you are lying in bed, apparently awake, when suddenly you experience a range of primarily somatic sensations, often including vibrations, heaviness, and paralysis. Then you experience the vivid sensation of separating from your "physical body" in what feels like a second body, often floating above the bed.
It is important to note the distinction between the phenomenal reality of the OBE and the various interpretations of the experience. What is really happening when you feel yourself "leaving your body"? According to one school of thought, what is actually happening is just what it feels like: you are moving in a second body out of and away from your physical body--in physical space. But this "explanation" doesn't hold up very well under examination. After all, the body we ordinarily feel ourselves to be (or if you like, to inhabit) is a phenomenal or mental body rather than a physical body. The space we see around us is not physical space as "common sense" tells us, but as modern psychology makes clear, a phenomenal or mental space. In general, our consciousness is a mental model of the world.
OBE enthusiasts promote lucid dreaming as a "stepping stone" to the OBE. Conversely, many lucid dreamers have had the experience of feeling themselves "leave the body" at the onset of a lucid dream. From a laboratory test, we have concluded that OBEs can occur in the same physiological state as lucid dreams. Wake-initiated lucid dreams (WILDs) were three times more likely to be labeled "OBEs" than dream initiated lucid dreams. If you believe yourself to have been awake, then you are more likely to take the experience at face value and believe yourself to have literally left your physical body in some sort of mental or "astral" body floating around in the "real" physical world. If, on the other hand, you think of the experience as a dream, then you are likely to identify the OBE body as a dream body image and the environment of the experience as a dream world. The validity of the latter interpretation is supported by observations and research on these phenomena.