2. The realm of "the joy of Confucius and Yan" is mainly to have fun with everything in the world. Its method is to recognize "benevolence", "time", "Tao" and "nature" directly from the heart, and often point directly to the highest state of harmony between man and heaven without other indirect means, taking nature of heaven and earth as the standard of ideal state. Its main features are directness, naturalness, vividness and freedom. Shao Yong, Hao Cheng and Xie He hold this view.
3. The mainstream view in Neo-Confucianism in Song Dynasty holds that "the happiness of Confucius and Yan" is the realm of unity with "reason". Its method is mainly through the internal "respect" and external "irrationality", from birth to maturity, and finally achieve the realm of "doing what you want without exceeding the moment" and "reason". The main characteristics of this method are seriousness, awe, vigilance and even walking on thin ice.