《论衡·卷十五·变动篇》
他们进一步解释说： 灾异的出现，大概因为君主施政影响了天，天就运用气来应和君主。
更说曰： 灾异之至，殆人君以政动天，天动气以应之。
They further explained that: the appearance of signs and omens was likely because the monarch's governance affected Heaven, and Heaven used qi to respond to the monarch.