"Of course it's related." Zhang Nan said. "What does the Emperor think happiness is?" Zhang Nan suddenly asked.

Faced with Zhang Nan's sudden question, Li Yuan thought for a long time, but did not give a satisfactory answer, so Li Yuan shook his head with a smile and said, "I have forgotten what this happiness is." However, I think that I have all my children and daughters, and I am happiest when my wife is still there. ”

"Emperor Taishang, what you said is not wrong, but what the minister wants is a more scientific explanation, to put it simply, the minister divides happiness into two parts, one is material life, the so-called material life, that is, there is no need to worry about livelihood, and there is also a part of the family property, I think this condition, for most people, is already a good life." Zhang Nan said.

Li Yuan nodded noncommittally, what Zhang Nan said was not wrong, and Zhang Nan said so, it is still too much, for the current people of the Tang Dynasty, if they can fill their stomachs and have a stable environment, that is a perfect material life.

"And what about the other part?" Li Yuan couldn't wait to ask.

There is also a part of it that the minister calls spiritual life. Spiritual life is easier to understand, for those literati, between the mountains and rivers, do one or two poems, that is their spiritual life, for some people who like fireworks, those places are their spiritual life, whether they like to compose lyrics, or like to listen to music, or to visit a brothel, that is to satisfy their spiritual life. Zhang Nan said with a smile.

After listening to Zhang Nan's explanation, Li Yuan also smiled.

"In other words, when you are satisfied with both of these lives, you will be truly happy." Zhang Nan said.

"I don't agree with you, it's not that you have any problems with the interpretation of these two lives, I still agree with these two explanations, but according to what you say, I am satisfied with both, but why do I feel unhappy?" Li Yuan asked.

Zhang Nan smiled and said, "Emperor Taishang, you only met the material conditions, not the spiritual conditions." Your spirit is empty, and you certainly don't feel happy anymore. For people, when the material is scarce, the material life is more important, but when the material life is basically satisfied, people also have a demand for spiritual life, the standard of living is high, and the requirements for spiritual life are also high, at this time, the spiritual life is more important than the material life, you are not happy, just because your spiritual life is not worthy of your material life. ”

"According to you, what kind of spiritual life should I have in order to be worthy of my material life?" Li Yuan asked.

"The requirements of people's spiritual life are different, the Emperor Taishang, you just have a strange disease, if you can cure this strange disease, then the spiritual life will naturally be satisfied." Zhang Nan said with a smile.

"Strange disease? I'm not sick, I just let the imperial doctor take a look at my body some time ago, and my body is fine. Li Yuan looked strange.

"The Emperor, your illness is not in your body, but in your heart, it is a heart disease, and the minister calls this heart disease "retirement syndrome". Zhang Nan said.

"Retirement syndrome, what is retirement syndrome?" Li Yuan asked.

"Retirement syndrome is a complex psychological abnormality that manifests itself primarily in emotional and behavioral aspects. Patients generally have the following symptoms: obvious changes in temperament, either sullen, depressed, silent, or irritable, restless, nagging; repetitive behaviour or confusion; Unable to concentrate, often making mistakes in doing things; Dissatisfied with reality, prone to nostalgia, and prejudiced. In short, his behavior is obviously different from the past, giving the impression that he is like two people before and after retirement. Zhang Nan explained.

After listening to Zhang Nan's explanation, Li Yuan looked surprised, because what Zhang Nan said was completely correct, and the symptoms were almost exactly the same as Li Yuan's.

"Qingquan, what you said is not bad at all, I think about it carefully, it seems that I have all these symptoms." Li Yuan was surprised.

"But why did I suffer from this disease?" Li Yuan asked.

"Emperor Taishang, what you want to admit is that although the status of the emperor is extremely noble, in fact, it is also a profession, what do you think? As an emperor, you have to go to court on time every day, and you have to review the folds, and you have to pretend to be the people of the world in your heart, and the reward of the emperor's profession is the heart of the people of the world, do you think what the minister said is right? Zhang Nan said.

"That's true." Li Yuan said.

"Emperor Taishang, you are also a person who has been an emperor, so for you now, you have now retired from the profession of emperor, just like the ministers have been officials and beggars all their lives." Zhang Nan continued.

Li Yuan raised his chin and motioned for Zhang Nan to continue, for Li Yuan, he is a passive retirement, and Li Yuan does not want to continue to delve into this topic.

"The occurrence of retirement syndrome is mainly due to the psychological or physiological symptoms of loneliness, loneliness, emptiness, anxiety or sorrow that some people have changed from decades of regular, rhythmic and responsible on-the-job life to unconstrained retirement life with free time. The fundamental reason for this is that there is no fundamental understanding of retirement and what to do after retirement. Zhang Nan said.

"What do you mean, I'm unhappy and unhappy now because I can't find something that suits me?" Li Yuan asked.

"That's right, that's what it means, Emperor Tai, do you feel that you have a sense of loss." Zhang Nan asked rhetorically.

"Feeling lost?"

"Well, before you give way, you have a successful career, you are respected, applause, applause, praise, but you give way, everything is in vain, for you, giving way becomes a "failure", you turn from useful to useless, such a contrast, you will have a huge sense of loss psychologically. Zhang Nan said.

Li Yuan nodded silently.

"The Emperor, you don't have to be like this, for you, life is colorful, why bother to pay attention to these unhappy things? All you have to do is find a new thing where you can devote all your energy wholeheartedly, divert your attention, keep yourself busy, and use your spare energy, then you will definitely feel happy. Zhang Nan said.

"Qingquan, you are such a wonderful person, this word has broken through the crucity of mine, but it is not easy for me to find something that I can devote myself to, and I am now even in that palace...... Eh, don't talk about it. Li Yuan suddenly thought that he was now in a state of house arrest, so he had to lament, quite a bit heroic and short-breathed.