《淮南子·泰族训》
那蛟龙藏匿于深渊，而它的产卵孵化却在岸上进行；礣蛇雄的在上风鸣叫，而礣蛇雌的却在下风鸣叫便可以受孕孵化成幼蛇，这是精之感应而造成的。
夫蛟龙伏寝于渊而卵割于陵，螣蛇雄鸣于上风、雌鸣于下风而化成形，精之至也。
The Jiaolong hides in the deep abyss, yet it lays its eggs and hatches them on land; the male Kuai snake calls in the wind, while the female Kuai snake calls in the lee to conceive and hatch its young, this is caused by the感应 (literally “feeling and感应”) of essence (精).