The Yami believe that illness is caused by an invasion by an evil spirit. To restore health, it is necessary to dispel the evil spirit. The best method is to starve him out, explains Tien Ya-ko.
雅美人認為，生病是「惡靈」侵入體內所致，想要恢復健康，就必須驅逐「惡靈」、打敗「惡靈」，「最好的方法就是餓肚子，將它餓死」，田雅各說出雅美族人的治病之道。