This document discusses centripetal and centrifugal forces in relation to state integration and unity. It defines centripetal forces as those that unite a country from within, such as nationalism, a shared culture, religion, language, or history. Centripetal forces keep a country together by giving its population a sense of common identity and pride. Examples of strong centripetal forces mentioned include a popular national hero, common threats from outside, and shared symbols of national identity like flags and anthems. Culture and religion in particular are described as powerful centripetal forces that can unite people.