"The higher the spiritual attainments of the Taoist priest, the more spirits he can mobilize into action," explains Liu Wen-san, a lecturer at Tainan Teachers College who has studied the art of fu for many years.
搜集、研究民間符畫藝術多年的台南師專副教授劉文三解釋說，符咒的思想得之於道家靈魂不滅與萬物有靈的觀念。