What does the fortune teller mean by committing the crime of white tiger Xuanwu?

They originally refer to the four stars in the sky, representing four directions. "Three Auxiliary Maps" says: "Black Dragon, White Tiger, Suzaku, Xuanwu and Tiandao are four spirits to prove the four directions." The history books also say: "The Black Dragon in the East Palace, the Zhu Bird in the South, the Fairy Pool in the West Palace, and Gong Bei Xuanwu." The white tiger symbolizes war and the god of war. Suzaku can also be said to be a phoenix or a mysterious bird. Later, it became Xuan Nv. In Beijing, there were three temples dedicated to Xuan Nv. Xuanwu, on the other hand, is a kind of 1 spirit composed of tortoise and snake, which was upgraded to the "Zhenwu Emperor" in the north by later Taoist priests.