This sentence is about the historical law: before and after the demise, many heroes came forth, contending for the world and seizing the imperial power, and eventually one person unified the world. This is "long-term division must be combined". After the world was unified, no matter who ruled it, there was the most prosperous era and there was also a time of extinction. This is "long-term division must be divided".

The Romance of the Three Kingdoms is China's first chapter-by-chapter historical romance novel, which mainly describes the war in the late Eastern Han Dynasty and reflects the political and military struggle among the three political groups of Wei, Shu and Wu. It is divided into three parts: the Yellow Scarf Rebellion, the Dong Zhuo Rebellion and the Three Kingdoms. On a broad background, magnificent war scenes were staged. Luo Guanzhong integrated the thirty-six strategies of the art of war between the lines, with both plots and strategies of the art of war. This book reflects rich historical content. The names of characters, geographical names, major events and characters are basically the same as those in The History of the Three Kingdoms. It is based on a fixed image and is played again. This is also the routine of historical romance novels. On the one hand, this book reflects the real history of the Three Kingdoms, and caters to the readers' need to know the real history; On the other hand, according to the actual situation of Ming society, the figures of the Three Kingdoms were exaggerated, beautified and vilified.