When a baby boy was born, mugwort arrows were shot in four directions of the house with a mulberry bow in order to purify evils in future.
-それぞれ、蓬の矢（よもぎのや）・桑の弓（くわのゆみ）とも言い、男の子が生まれた時に前途の厄を払うため、家の四方に向かって桑の弓で蓬の矢を射た。