All Human inventions are first thoughts before they become things.
So the creations of communities, cities, governments, armies, achievements - everything that goes up to make a civilisation, must spring from a community's thoughts. It is generated and moulded by the chatter of citizens associated with everyday events, and given action by the institutions of the society. A Communal Mind is similar in operation to an individual mind, except that in the latter case audible chatter is replaced by silent thoughts, but the mechanism of understanding is the same and consists of ideas, expressed in words, which are filtered by a code of values to determine which should become reasons for action. This does not mean that everyone believes what is popular, but unpopular concepts are ignored. Sanity may be lost, a graphic example being the Nazi phenomenon , when a whole nation behaved like a lunatic.