On this day, Zhu Ling came to a small village next to Chendu. When he was tired, he sat on a stone character by the river beside the village to rest, but he saw a strong man in the village holding a chicken and exchanging a cow with a woman. Zhu Ling looked at it very strange and went up to ask the woman and said, "Your cow is so big, and that chicken is so small, will you suffer a lot when you exchange it with him?"

The woman sighed and said, "Miss I don't know. I am old and weak. Even if I have cows, I can't farm the fields. I still have to feed a lot of food sooner or later. It's better to change a chicken to feed it, so that I can lay eggs and eat. Besides, none of us know how many chickens a cow should be replaced, so how can we suffer a loss?"

After hearing this, Zhu Ling thought, and thought that there was no value in the human race's mind, but it was just a simple exchange. At this time, Zhu Ling suddenly felt that the money of Luobao in her arms seemed a little hot. Zhu Ling was shocked and quickly took it out to check it out, but the four words "Go to bring wealth and treasure" on the money were actually glowing faintly. Zhu Ling said in his heart: When the teacher gave me Luobao money, he once said that this thing had a great opportunity. Now the money of Luobao has changed, but it has never happened in a century. Could it be that my opportunity was to exchange items, but what is the relationship between the exchange of items and the money of Luobao?

Zhu Ling couldn't understand the thoughts. The teacher of Xindao was judging the heavens and the man must know. Why not ask the teacher for a while? He made up his mind and flew towards Xuanmu Island.

It turned out that shortly after Li Song took over the throne at Shennong, he thought that it would take some time for the last emperor among the Three Emperors, Emperor Xuanyuan. So he went to Sanxian Island for a while, and then invited everyone from Sanxian Island to visit Xuanmu Island. Therefore, Xuanmu Island now seems to have become a branch island of Sanxian Island.

Zhu Ling came to Xuanmu Mansion, and two boys Bai Shi Qingzhi came up and said, "The master is asking me to wait for senior sister here!" Zhu Ling was overjoyed and hurried into the mansion. However, Li Song was sitting in front of the hall and looked at him with a smile. Zhu Ling felt his eyes turn red. The suffering he had suffered in the world for a hundred years suddenly surged in his heart. He rushed forward and knelt down and said, "Teacher..."

Li Song saw Zhu Ling's face full of dust, but his originally fair skin was much darker at this moment. He thought that his words of experiencing mortal life must have caused Zhu Ling to suffer a lot of grievances, but this is a necessary action to sharpen their temperament. You must know that practicing Taoism is to cultivate the mind. The higher a person's Taoism, the more you are, you must have a matching mood. Otherwise, if you are not careful, you will be in a guise. Zhu Ling Meiyun and the other two followed Li Song from the beginning, which is a must.

, If you want to get rain, your cultivation will also grow rapidly. Now that the opportunity has come, you may soon enter the quasi-saint realm, but your mood has not changed. The improvement of your mental state of mind is to walk through the line of life and death. Li Song regards Zhu Ling and Mei Yun as treasures on his palm and is reluctant to suffer this great suffering. Therefore, Li Song asked the two to go deep into the mortal world to experience the various aspects of life. Moreover, the path of their enlightenment is also closely linked to the sufferings of the people.

Li Song thought to himself that Zhu Ling was like this, and then Mei Yunding was not much better. He asked Zhu Ling to sit down and smiled with concern: "Silly child, you are considered an adult, how can you still cry? Tell the teacher what you have done in the past hundred years?"

Zhu Ling's face change speed was comparable to that of Bixiao. With a smile, she told Li Song about his experiences over the past century. Li Song was an ordinary mortal in his later generations, and naturally became interested in those human things. He only corresponded to the customs of later generations in his heart. He found that the customs of later generations have improved a lot compared to the present. The cultural bonds of the heart are indeed in line with each other, but they have made progress from time to time. He is also very sighing now!

Zhu Ling finally told Li Song about the exchange of chickens and cows he saw in that small village, and said, "I am stupid and I only feel that this matter is related to my enlightenment, but I can't figure it out. I hope the teacher will give me some advice!"

Li Song said, "Come with me!" After that, he flew out, and Zhu Ling hurriedly followed.

However, Li Song took Zhu Ling to an open space outside a small village by the East China Sea, where a group of children were playing games. Zhu Ling was puzzled, and Li Song said, "Look at the things in the hands of those children!"

It turned out that the children were divided into three groups and were playing the express game. The three of them stood in a row. The leader held a wooden stick and handed the wooden stick to the second child, handed the two children and then to the third child. After the third child changed the wooden stick to one hand, he handed it back to the second child, and finally passed it back to the first child. In this way, which group is the fastest to win.

This is just a game that children in the prehistoric world are playing very ordinary. Zhu Ling has often seen her for a hundred years, but at this moment, the teacher specifically reminded herself, so she spread her eyes to the wooden stick.

After a long time, Zhu Ling discovered that the wooden stick was transmitted through the second child, but every child could reach the hands of each child. In this way, a wooden stick could be used by three people. However, the wooden stick could not be transmitted from the first child to the third child. It must be transferred through the second child to be considered a foul. Zhu Ling is also a smart person, and immediately understood a lot!

Li Song looked at Zhu Ling's face and smiled and said, "This is called circulation, and everything in the world can be connected to the best!"

Zhu Ling suddenly realized and bowed to Li Songyi, "Disciple thanks to the teacher for giving me some advice. The disciple will cast general equivalents according to the appearance of the treasure-falling money in his hand. The value of all things can be measured by this general equivalent. Therefore, if two things need to be exchanged, just replace them with general equivalents first!"

Li Song thought that this was the prototype of later generations of currency. Thinking of a famous saying in later generations, "The world is bustling, and everyone goes for profit." He thought that at this moment, the initial implementation of currency was Zhu Ling, and he probably didn't know that his actions would change the life of the entire prehistoric human beings and bring immeasurable impact.

Li Song said: "You still have to go back to the island with me. You have to solve several problems before you can implement it! 1: There are abundant harvests of items, how to ensure that both parties in circulation do not lose money? 2: What should I do if I issue general equivalents without restraint, resulting in bloating circulation? 3: What should I do if someone imitates the general equivalents you promote? 2: There is no sweat or damage to my muscles and bones. If everyone promotes your general equivalents without human farming, no one takes care of public office, etc., wouldn't other industries of the human race be paralyzed?" These points are the most common basic problems in later currency transactions, so Li Song said this.

Zhu Ling thought about the several issues Li Song said one by one. At first, he thought it was an extremely simple thing, but the more he thought about it, the more he felt it was difficult to understand. If Teacher Zhenru said this, wouldn’t he be a sinner of mankind for the ages? Even if he couldn’t attain enlightenment, what’s wrong? Zhu Ling suddenly felt sweating, his face was pale, and he was almost unsteady to stand.

Li Song felt very distressed, thinking that after ten thousand years after the currency was released, those economists who claimed to be social elites could not find a perfect solution. It would be too cruel to have a little girl bear so much! He immediately inputted a stream of Jiamu green energy to Zhu Ling to help him stabilize his mood and said softly: "Silly kid, let's go back and think slowly, if there is a teacher here in everything, what are you worried about?"

Zhu Ling came to her senses and heard Li Song's words, and said with tears in his eyes: "Disciple will go back to seclusion and think about it. If you can't think of a solution, you will never leave the seclusion!"

Li Song sighed and said, "It is great to make such a wish, but I would like to remind you that circulation is the circulation of the world, and the key to solving everything. Don't forget the common ruler of the human race!"

In this way, Zhu Ling returned to the bamboo building on Xuanmu Mountain. She did not ask about the world and only thought about the solutions to the several problems Li Song talked about. Li Song thought that this kind of thing was to prove the truth depends on his personal fortune, so he had to silently bless Zhu Ling.

Li Song stayed on Xuanmu Island, sometimes traveling around the island with Yunxiao, sometimes guiding Yuan Hong Xiuwei, and life was easy.

But two years later, Kong Xuan also returned from the prehistoric world. Li Song saw that the five-colored divine lights behind Kong Xuan had already cut wood green, fiery red and earth yellow. Now even the innate Geng Jin white has been cut. He thought that under the prehistoric world, the only one who can help Kong Xuan kill the Geng Jin light is the Cunti Saint of the Western Sect. At this moment, Li Song said to Kong Xuan: "Brothers are now greatly improving in their cultivation, and I am happy for my brother, but my brother has obtained a lot of cause and effect, and I am afraid that I will have to repay it in the future!"

Kong Xuan said: "Brother, don't worry. I think that the Saint Cunti is also a good person. If I have the chance in the future, I will repay this cause and effect!"

Li Song only sighed and said to Kong Xuan: "But what should come is always coming. It will take two thousand years to know everything about this matter..."
Chapter completed!