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 - Cleaning
If you dream that you are cleaning your house, then there will be changes in your life and you will put many things in order. If you are cleaning greens, then expect some financial problems.