Festivals are sometimes irrational. "They're a world of mystery created by the love of a people for their society," Yu Teh-jui remarks. The strength of a festival can't be measured only by its "utility."
節慶有時也是非理性的，「這是一個民族對他的社會依戀，而產生的神秘世界」，余德慧強調，節慶的力量，不能只以可以想到的「功能」來衡量。