Why Dreams Can Not Be Remembered

Why we can’t remember our dreams? Our brain works during this time. Usually you always keep a memory when you have your brain active. For sure brain does not sleep as our body does. Dreams are very intensive. I know this because I have my sleep interrupted and believe it is me who is participating in all the processes of dreaming. Why then we have no conscious memories about the time we spent dreaming? Dreaming is very important process. We spent at least a third of our lives doing it. And we can recall but just few scratches from the surface of our dreams. How it is possible that we have no or just very few faded memories from all this time?

Image credit to ostromentsky