I have noticed that in my dreams I am the observer, the players even the one playing ME(if present) are players, actors.. but I am the observer watching a play, a skit.. When the observer(me) trys to participate, I wake up.. every time..
The human body needs sleep, the human spirit does not.. Could be that dreams are merely something to keep the human spirit busy while the body sleeps.. else what is the purpose of dreams.. Why would a human spirit need rest.?.
That's a good question, hosepipe! The dreams do seem to focus our impressions, often in a constructive way.