Imagination is more than dreaming of a new automobile or picturing somebody naked! If you look at clouds and see forms or wood grain and see figures, this is the "e;order from chaos"e; a piece of your imagination. The brain can’t deal with chaos really well, as a matter of fact it will resist it and occasionally manufacture order. (Really crucial to the dreaming operation.) This as well occupies a little percentage of brain activity. Then there’s memory. Memory is huge! And then there’s the action called dreaming. I think that to a particular extent, we dream all the time. Even while not sleeping! However, the procedure is functioning in our subconscious brain, behind the conscious. If defined accurately, they may not be named as dreams technically; however, the activity is really nearly related. During particular cycles of brain activity while sleeping, we may "e;view"e; these dreams with our conscious brain and place them in our memory.
Rafbók / E-book
How to Interpret Dreams