Political independence can arrive while the mind is still occupied.
A country can win its flag, its parliament, and its borders back, and still keep reasoning in the coloniser’s categories, because those categories were never handed back along with the territory. They were installed too deep to notice as foreign.
Kenyan writer Ngũgĩ wa Thiong’o argued this most directly in his 1986 essay collection Decolonising the Mind. Colonial education did not just teach a foreign language alongside a native one, it taught children to see their own culture, history, and values through that foreign language’s categories, producing what he called colonial alienation: a mind trained to treat its own inheritance as backward and the coloniser’s frame as neutral, objective, and default. In response, Ngũgĩ made the deliberate choice to write his later fiction in Gikuyu rather than English.
The idea generalises past language alone. Any domain, law, economics, science, what counts as “rational” itself, can carry the same unexamined installation: categories a colonised people never chose, inherited as though they were simply how thinking works, and never re-examined once political sovereignty was formally won.
Source: Ngũgĩ wa Thiong’o, Decolonising the Mind: The Politics of Language in African Literature (James Currey/Heinemann, 1986).