Herbal Medicine Breaks The Sky

Distinguishing the Seven Emotions
The old gentleman stroked the podium three feet tall, twirled his beard and asked in a deep voice: All students, listen, what do the "seven emotions" contained in the Materia Medica mean?
Jia Sheng stood up and shouted loudly to answer: Sir, why is this so difficult? The seven emotions are joy, anger, worry, thought, sadness, fear, and surprise! This is the theory of worldly emotions, and someone has memorized it in his previous life!
The gentleman was so angry that the paperweight flew down from the case: Ignorance! Mistaking ordinary emotions for true herbal medicine! Come on, take it out and refine it into a pill!
Yisheng straightened his clothes and gathered his girdle, stood up calmly, raised his hands and said loudly: Sir, please calm down, I know this. Emperor Shen Nong tasted hundreds of herbs, and wrote the "Compendium of Materia Medica" which said: There are single-acting herbals, some have beards, some have messengers, some have fear, some have hatred, some have opposites, and some have murders. All these seven emotions should be viewed in harmony.
The old gentleman's face softened slightly and he nodded for a moment: What you said is recorded in the scriptures, but I have not yet fully understood it. The seven emotions in Materia Medica should not only be listed by name, but also explained clearly. Please remember this.
The old gentleman looked at everyone and said: The road goes alone! Different fates fight! Killing each other for the same fate! …