DreamsMaster: My sense is that you’re feeling guilty about something, and your late mother in your dream represents your conscience giving yourself a beating.
What might you be feeling guilty about? Think about what leaving dirty clothes around might mean on both literal and symbolic levels. For example, perhaps you feel your life is not as tidy as you think it should be, or that maybe you should be taking greater responsibility and control of your life. On a symbolic or metaphorical level, “dirty clothes” could represent “dirty laundry” – an expression having to do with unfinished business in the past. Do you have unfinished business you’ve been ignoring, loose ends that need to be tidied up?