In Yin Dynasty, Emperor Taiwu came to the throne. In his reign, Yizhi became prime minister, when there was omens in Bo, for a mulberry tree and a stalk of grain grew up together in the court. They attained full size in one evening, and emperor Taiwu, being alarmed, questioned Yinzhi on the subject.
Yinzhi said: 'I, your servant, have heard that virtue is not overcome by evil omens. there may be defects in your Majesty's government, but let your Majesty cultivate virtue.'
Taiwu followed his advice, and the ominous mulberry withered away.