All of us have once have dreams. Dreams are a combination of images, sounds, emotions and ideas blended together to form and interesting story.

In order to dream we must pass through five stages of sleep. The first stage is light sleep in which you are able to wake up easily. Stage two our breathing and heart rate slow and in the third stage you are in a deep sleep. By stage four you are in the deepest possible sleep. After 90 minutes of falling asleep and after stage four you enter REM sleeping. REM or otherwise known as Rapid Eye Movement is where you spend 20-25 percent sleeping. By the time you’ve awaken you have experienced four to seven dreams.

So what happens if you can control your dream, well you are having a lucid dream. The definition of lucid dream is “when you realize you are dreaming and you are able to then control what happens in your dream.” It is estimated that around 100,000 people who possess this skill. Stephen LaBerge of Stanford University and Lynne Levitan had developed a technique for inducing lucid dreams. Mnemonic Induction of Lucid Dreams or MILD is a two step system in which you recognize when you're dreaming and reentering a dream until you go sleep. But since this requires lots of mental training they are working on using external stimuli to induce lucid dreams.

From 1940 to 1985, Calvin S. Hall has collected more than 50,000 dream reports and has outlined a coding system to study 1000 college students. Basically dreams all have a common emotion and theme. The most common emotion felt is anxiety. Negative feelings are more common then positive feelings. Many common themes in dream is thing relating to school, being chase running slowly and many other things.

Dreams can have many meaning or possibly no meaning at all but all dream have 5 stages and if practiced can be controlled. So when you finish a good dream you like