Sleep and Dreams On average, we spend about one third of our lives sleeping. In most of that time, we are dreaming. When asleep, we can gain rest and refreshment for our hard day of work. Essentially, what dreams are, are our way of relaxing, and letting our minds drift away into a distant world. In this dreaming time, we can interact with various people, places or things. Technically speaking, a dream is mass hallucination. A dream is a hallucination that is also a fantastical journey in our sleep that either relieves us of stress or tries to detract us from a certain habit or future happening (better known as a nightmare). Dreams help us to understand ours