Some pattern within you (depending on where the dirt is) is in need of a good scrubbing....
(Filth) Adirty face in a dream represents a rare art, while a filthy body represents a sinful person....
If water is made to flow from a well it means a person will spend his wealth in a manner bringing no benefit or harm to him....
Dirt is associated with farming, and therefore with fertility and growth. Something underneath the ground symbolizes the unconscious. Because of the social importance of cleanlines...