The Complete Guide to Interpreting Your Dreams

by Stearn Robinson - Tom Corbett
An average-sized picturesque water mill in your dream augurs a peaceful, happy homelife, but a very large (commercial type) mill signifies wealth acquired through the efforts (or ideas) of others.

A sawmill portends upsetting news, and a windmill is a warning against being too quick to trust strangers.

To dream of a miller at work is a sign of a coming improvement in your circumstances.

Dream Symbols in The Dream Encyclopedia

by James R. Lewis and Evelyn Dorothy Oliver
Something that is being ground to flour or meal can indicate the disintegration of the ego and false beliefs in self.

It is the coming to grips with the “nitty gritty” of life, and behaving according to one’s true values and beliefs.

Islamic Dream Interpretation

by Ibn Seerin
(Grinder, Press) In a dream, a mill represents a school, a courthouse, a balance, justice, righteousness, benefits, blessings, money, food, charity, or marriage.

The millstone in a dream represents a wife and a husband.

The flour that issues from between the two grinding stones represents sperms or children.

A mill in a dream also means distress and adversities, uptightness, headache, a rivulet, or a windmill.

If one sees a mill grinding human beings in a dream, it means loss of lives and adversities.

If one sees a mill grinding something that is not edible in a dream, it means drought and rising prices.

If the amount of flour coming from the mill is plentiful in the dream, it means lowering of prices, or recovering from an illness. Grinding lupine seeds, henna seeds, potash, saltwort, salsola kali, jojobe seeds or any seeds from the marsh mallow tree in a dream means washing oneself from sin, overcoming difficulties, paying one’s debts and recovering from an illness.

(Also see Oil press, Press, Sugar mill)