寢苫枕塊 [ㄑㄧㄣˇ ㄕㄢ ㄓㄣˇ ㄎㄨㄞˋ; qin3 shan1 zhen3 kuai4] bed of straw and pillow of clay (idiom); the correct etiquette for filial son during Confucian mourning period ◄ ►