In the world of dreams the rules of reality do not necessarily apply. Each dream is unique and it's a direct link to the soul and spirit. Psychology provides its own theories on what dreams mean, but so did tradition and the study of dreams for thousands of years before any relevant science had developed.
Dream Meanings - Night
If you dream that it’s night time and the sky is filled with stars you will have success at work, but if it’s very dark and there are no stars you will receive sad news.