《后汉书·列传·郎顗襄楷列传下》
现在宫人侍御，数目以千计，有的一生隔离，人道不通，郁积之气，上感皇天，所以派荧惑星入轩辕后宫，理人伦，垂象显示奇异，使主上觉悟。
今宫人侍御，动以千计，或生而幽隔，人道不通，郁积之气，上感皇天，故遣荧惑入轩辕，理人伦，垂象见异，以悟主上。
Now there are thousands of palace people serving in the palace, some of whom are isolated all their lives and have no human relations. The accumulated anger reaches the heavens, so the heavens send bright stars into the back palace of Xuanwu, rule human relations, hang images to show wonders, and make the monarch realize it.