《礼记·乐记》
没有乱民闹事，诸侯归服，兵革不用，刑罚不用，百姓无所忧虑，天子无所不满，做到了这一步，就表明乐已经深入民心了。
暴民不作，诸侯宾服，兵革不试，五刑不用，百姓无患，天子不怒，如此，则乐达矣。
When there is no chaos or rebellion, when the feudal lords submit to the emperor, when weapons are not used, when punishments are not applied, when the people are free from worry, and when the emperor is satisfied, it means that music has reached the hearts of the people.