A sacred object is INVISIBLE and acts in profound ways to motivate thoughts and behavior and activities within the domain of cultural domain. God is a sacred object. Allah is a sacred object. A nation is a sacred object.
Human beings IMAGINE what their god wants them to think and how he wants them to behave. These gods are invisible and unseen.
Nations are sacred objects. These objects motivated massive killing and dying in the First World War when 9 million human beings died in the name of invisible objects called France, Great Britain, Germany, Russia, and many other nations.
Entire civilizations are under the spell of these unseen objects.