A mill symbolizes transformative energy, turning the crude into the usable. The two large stones that make up a millstone are said to signify will and intellect, the tools we use in transformation. There is a transformation that occurs when any material is ground down and changed into a more useable material. A dream containing a mill will signify that transformation and echoes the process of Creation. A mill extracts what is useful from the crude material it is fed. It is this quality that is symbolized in dreams. We are able to extract from our experiences in life what is useful to us and what we can convert into nourishment.