Modern science has shown an increased interest in dream analysis. However, there are opposing views of answers to the basic questions, “why are we dreaming?” “what purpose does dreaming serve?” “what do dreams tell us about our waking state, and more specifically, our brains??”

These scientific theories can be divided into three main categories: an evolutionary theory, a cognitive theory and a biological theory.

You will be able to view both sides of these theories, and possibly decide for yourself whether you feel dreams are a requirement of the evolution of humankind, if they help us to process information better, or whether they serve no purpose at all.