As your psych nurse, I would remind you that your mind NEVER sleeps..while you let go and snooze...it HAS to stay occupied...so it pulls out INTERESTING images, shuffles them around like a riverboat gambler and sees what comes out..that can be interesing GOOD...(you win a million and make out with Jason Priestly)...or interesting BAD...(a car crash...or not getting Halloween done...)think of the halloween dream as what we used to call a "dry up dream"...where something bad happens and you are left helpless while it does..a lady I knew who came from a very poor home but married into money used to have the same dream all the time..she would goof up and serve very rich people hotdogs....