Louis XIV's personal rule refers to the period during his reign when he exercised absolute authority over France, effectively eliminating any checks on his power. He famously declared 'L'état, c'est moi' ('I am the state'), emphasizing his belief in divine right and the centralization of power in the monarchy. His reign is characterized by the construction of the Palace of Versailles, the establishment of a strong bureaucratic system, and the pursuit of military and cultural dominance in Europe.