as used here, it simply means "created." In Scientology, the word mock-up is used to mean, in essence, something which a person makes up himself. A mock-up is more than a mental picture; it is a self-created object which exists as itself or symbolizes some object in the physical universe. The term was derived from the World War II phrase for miniature models that were constructed to symbolize weapons (airplanes, ships, artillery, etc.) or areas of attack (hills, rivers, buildings, etc.) for use in planning a battle. N Have You Lived Before This Life? Glossary. Final approval circa 19/9/89