求翻译：“踩刀”俗称“上刀山”，分“踩天刀”和“踩地刀”两种。“踩天刀”由掌坛师手执牛角，口念咒语，背着过关童子即有病的儿童，赤脚爬上由十二把或二十四把、三十六把利刀组成的刀杆上。“踩地刀”是将装在刀杆上的利刀平放在地，刀锋朝上，掌坛师赤脚牵引过关童子从刀上走过。程序一般为“请师”、“迎王”、“上座”、“拜表”、“上关”。在上述程序中掌坛师要念咒语、打卦。在巫术信仰看来，小孩多灾多难，是遇上了恶魔鬼怪，要在神灵护佑下，由巫师驱赶鬼怪，指引小孩闯过人生旅途的关隘，易长成人。在观众看来，则是一幕惊险、有趣的特技表演。是什么意思？

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Commonly known as "the sword", "security" sliced with a knife, the "security days" and "security" to a knife. "Security days" with a knife hand horns by the keeper's altar, and the concept behind the curse, a disease that is crossing the boy, barefoot children climbed from 12 to 36 or 24, consisting

"Step on the sword", commonly known as "mountain of swords on", "hitting the knife" and "step on the knife" in two ways. "Hitting the knife" by taking charge of the master hand horns, incant, carrying the border boys that sick children, barefoot climbed by 12-24, 36 or knife knives composed of rod.