Cleaning and tidying up may suggest preparation for someone new coming into your life. It may also remark on the necessity to clean up some unfinished business or to clean up a mess you have made in some relationship or situation. Cleaning could also represent having to clean up someone else’s mess.... Ariadne's Book of Dream
Vision: Dreaming about cleaning: it is time to pay more attention to your relationships and to be more supportive. Cleaning and making yourself look better be more humble and modest. Dreaming about cleaning is a challenge to always improve and polish your character, removing the stains that might cling to it.
Depth Psychology: Remove emotional, mental, and moral blemishes that are clogging up fragile spiritual connections.
It is also important which objects are being cleaned or what is being “swept” out—pay attention to the rest of the images.... Dreamers Dictionary
Dreams that you are cleaning are good signs. It means you are removing some negativity in your life and overcoming major obstacles to enter a new stage in your life. It signifies self-improvement and increased confidence.... My Dream Interpretation
A clear, straightforward warning note from your conscience is contained in a dream of cleaning, and the harder or busier was the dreamed cleaning activity, the more urgent is the warning against allowing yourself to be drawn into anything even slightly unethical, no matter how pleasurable and/or profitable it may appear.
See also Wash, Teeth, etc.... The Complete Guide to Interpreting Your Dreams
Washing in dreams is a fairly common theme, and almost always relates to something that is troubling or worrying the dreamer in waking life. The harder the hands or body are scrubbed, the greater the need for the unconscious to be free of guilt or some kind of burden.
The same applies to washing stains in clothes.
If you are taking a shower or bath in your dream, this could indicate a problem that overshadows you in waking life.
If you are washing your hair, this is connected to your emotions, and if you are washing your genitals, there may be some kind of sexual adventure in waking life that you are ashamed of. You could also be worried about sexually transmitted diseases.
If you are cleaning your home, this could suggest that you want to get more organized in your waking life, but before you can do that you need to dispose of dirt or dust; this may refer to ways of thinking or responding that are clouding your judgments in waking life.
If you were watching a washing machine in your dream, this is a reference to your daily routine and the boredom you feel.
If you are trapped in the washing machine, you feel stifled by your daily routine; it will therefore be important to make changes in daily life as soon as possible.... The Element Encyclopedia
As the entry on spring suggests, the dreamer is cleaning out old ideas and may actually be physically preparing themselves for new business, relationships, and new beginnings in their life.... Dream Symbols in The Dream Encyclopedia
A dream about spring-cleaning is probably inviting you to make a new beginning, start a new life, by getting rid of old muck and rubbish: negative habits and attitudes, energy-consuming anxiety’, a sadomasochistic guilt-complex, etc.... A Dictionary of Dream Symbols