What does it mean to draw Liu Bei across the river by fortune telling lottery?

Liu Bei crossed the river twice. On one occasion, Changbanpo was chased by Meng De and led people across the river. On another occasion, Chunfeng proudly asked his wife to cross the river. The Romance of the Three Kingdoms, for the purpose of beautifying Liu Bei, boasted that he loved the people like a son when he crossed the river behind his back. It seems that he just thinks that the people are the capital of his future military strength. To put it more darkly, he may also use the people as human shields to cover his escape, not for the happiness and dignity of the people. Because of the great influence of Romance of the Three Kingdoms, later generations borrowed the word Liu Bei crossing the river to describe the meaning of love between XXX and XXX. Do you think so? Just don't think so.