《宋史·志·卷四》
日晕而生背气，它下面战争发生，城池攻克，看背气所指的方向攻打敌人就会胜利，又说王者厌恶这种情况。
晕而生背气，其下兵起，城拔，视背所向击之胜，又曰王者恶之。
When the sun halo is born, there will be a war below it. If you conquer the city, you will win if you attack the enemy in the direction of the halo. It is also said that the king hates this situation.