 &gt; I can tell you that when I am falling asleep there is a &#x27;switch&#x27; that turns on in my brain and all of a sudden whatever I&#x27;m thinking about will appear before me in full detail, color, texture as if I were viewing an image of it.<p>Whoa, cool.  Like the author, I rarely remember any dreams (last night, total blank) and they are never visual.