《太平广记·卷二百八十五·幻术二》
有人前来拜谒，把那面镜子一翻，便使之看到自己来世的模样，有的竟然是毒蛇和野兽。
有人来礼谒者，转其镜，遣观来生像，或作蛇兽形。
When someone came to pay a visit, he would turn the mirror and show them what they would look like in their next life, some were venomous snakes and beasts.