As the "guiding principles" for the specialty of talismanic medicine say: "This will not work for those without sincerity or purity of heart; this will not work for those who ridicule supernatural medicine; this will not work for those who have doubts."
《祝由十三科》開宗明義就說了：「不誠不淨者不治，毀謗天醫者不治，疑信不覺者不治。」