Where is the true center of the United States?

Could you please clarify what you mean by the "true center" of the United States? Is it referring to a geographical center, like the geographic center of the contiguous United States, which is located in Kansas? Or are you looking for something more symbolic, like the heart of the nation's culture, politics, or economy? Additionally, are you interested in the historical context behind the determination of such a center, or are you simply seeking a concise answer to the question as posed?