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 - Lime wash
If you dream of lime wash then you will have economic problems, whereas if you see yourself wiping lime away then be careful what you do at work because you will suffer a failure.