I am confused. The WILD tutorials I've read mainly involve relaxing, closing your eyes, and letting the hypnagogic imagery and whatnot flow.

Now, what's the difference between this and the normal way to sleep?
If I go and lie down, relax, formulate a picture in my head and wait, I bet I'll either fall asleep or nothing will happen...

Someone please explain what seperates WILD (the nap version) or even VILD from an ordinary map.