do dreams mean anythig?

Yes, dreams can mean something. It’s your subconcious working when your are asleep and a lot of times our dreams reflect what is going on in our lives or what we want in our lives.

How to control them: Buy a small notebook, set it close to your bed, and keep a pen close by. Before you go to bed each night, write what you want to dream about in the notebook. (Be sure to label somewhere at the top!) draw pictures, write and draw with lots of detail, remember even the smallest things are important. Don’t watch something before you go to bed or you may dream about that! Read what you’ve written as many times as you need to get it in your head. Lie down, relax, and think hard about what you want to dream about. Think of details, they are important! Close your eyes and look at the images from your dream as they appear in your subconscious. If nothing appears, read your dream again. Think of it in the 1st person point of view. Imagine what it would seem like through your eyes. Think of dialogue and sounds in your dream until you are hearing them in your mind. Think hard, but maintain a calm posture. Do not get tense. Just relax. Go to sleep with these images and sounds in your head. When you wake up, whether you had the right dream or not, write what happened parallel or connected somehow to the dream that you wanted to have. Again, label! Compare the two dreams and think about the similarities and differences, write them down, or simply ponder over them.

http://www.wikihow.com/Control-Your-Dreams