No matter what the type, Master Chen emphasizes that each fu must go through a magic ritual, including an incantation and, often, three revolutions over a joss stick, before becoming effective.
天靈地靈，少了咒語就不靈符體變化萬千，各依不同場合、不同需求，拜請不同神明敕令，陳道長強調，符畫的本身並無法力，必須由道士配合法器、手印、咒語… … 等種種儀式過程，才能使符籙靈驗。