In stages two and three, your brain waves become considerable wider, and you have no conscious thoughts. If someone opened your eyes during these stages, you would not see. Stage four is the REM stage, the profound state of unconscious and the most fascinating and confusing stage of rest. Your eyes and mid-ears vibrate, your pulse quickens, and your brain temperature and blood flow increase. You have your most vivid and creative dreams during this stage.
Most people spend twenty to twenty-five percent of their sleep time in the REM stage.
It takes about an hour for your mind to go into REM the first time, then you go in and out until you gradually return to consciousness. The stories you tell yourself in your sleep say a lot about what's bothering you when you're awake. When you dream, you're much more open and willing to say what you don't in waking life. If for instance you are having marital problems with your spouse, you might have lots of dreams about your life and also might dream a solution to the problems in your marriage. Sometimes a spouse will dream about the marriage breaking up long before it happens.