is an instrument used by operative Masons to break off the rough and superfluous parts of stones, the better to fit them for the builder's use. But we, as Free and Accepted Masons, are taught to make use of it for the more noble and glorious purpose of divesting our hearts and consciences of all the vices and superfluities of life; thereby fitting our minds as living stones for that spiritual building, that house not made with hands, eternal in the heavens.