《论衡·卷二十五·解除篇》
病人病情严重，就会看到鬼来，性格勇猛刚强的病人，就会举剑拿杖，与鬼进行战斗，战斗一两次，病人就停下手表示屈服，因为他知道如果不屈服战斗就不会有终结。
病人困笃，见鬼之至，性猛刚者，挺剑操杖，与鬼战斗。战斗壹再，错指受服，知不服，必不终也。
When a patient's condition is serious, he will see ghosts; when a patient is brave and strong-willed, he will fight with ghosts with a sword or a walking stick. After fighting for once or twice, the patient gives in, because he knows that fighting will continue endlessly if he doesn't cede.