If you dream of living on a farm, or dream you’re working on a farm, it means the same thing. You are associated with the imagery of a farm, to mean you like being independent and self reliant. The farm should be producing enough food for at least its occupants, if not more people.
If you have a job and one night, you dreamed you’re living on a farm, your dream means you desire to become more self reliant. You may search for ways to improve your working capacity, or methods to live more independently. You may make your own food by cooking at home. You might consider packing your own lunches to bring to work. If you have been buying clothes, you might try learning sewing, to tailor your own clothing. When you become self reliant, you are not hard pressed to accept fixed choices.