Li Qingfeng and Zhuo Buyan obviously knew this way and wanted to stop Lu Yun, but it was too late.

Lu Yun had already entered the state, and the machine had begun to flicker rapidly.

Zhuo Feng was puzzled: "What is spiritual infusion?"

Li Qingfeng sighed: "Spiritual infusion is a learning method before the catastrophe, through the machine and the spirit are connected, a lot of knowledge can be forcibly instilled into the brain, a lot of knowledge can be obtained in a short period of time, and then slowly learn, saving a lot of time."

Zhuo Feng's eyes lit up: "There is such a magical way."

Zhuo Buyan shook his head: "I learned from the classics that spiritual indoctrination is a research initiated at the end of the catastrophe, and it is still in an experimental state, which is very dangerous."

Zhuo Feng was stunned: "Very dangerous? What does that mean? ”

Zhuo Buyan sighed: "In the later experiments, the experimental subjects involved in mental indoctrination were either brain-dead and turned into vegetative beings, or completely insane."

Zhuo Feng's face changed greatly: "There was no success?"

"There are precedents for success, but the amount of indoctrination is very small, and the success rate is only one percent."

Zhuo Feng pointed at Lu Yun: "This ......, why don't you hurry up and stop the machine."

Li Qingfeng sighed: "Spiritual indoctrination has been initiated, and if you interfere halfway, it will inevitably become brain dead."

The three of them all had solemn faces and stared at Lu Yun tightly.

Lu Yun naturally didn't know about this, but he had already discovered the problem.

He also already knew the principle of mental indoctrination, which was to force the infusion of data knowledge into his brain.

A huge amount of data and knowledge is entering his brain through the spirit, making him mentally split and his brain want to explode.

He felt that he was about to die, and so much data knowledge was forcibly instilled, which was simply not something that the brain and spirit could bear.

Countless amounts of data knowledge came to his mind, throwing his mind into a mess.

Lu Yun's body was also trembling, his expression was hideous, and he was suffering great pain.

At the critical moment, the things in his memory seemed to be activated, making him feel that the data knowledge was familiar, as if he had seen it somewhere.

With the infusion of data, more and more memories were activated, and Lu Yun felt a lot more relaxed.

After all, he seems to have learned this data knowledge, but now it is only equivalent to activation, and the impact is not so great.

Lu Yun gritted his teeth and insisted, and finally this wave of spiritual indoctrination ended, although his mind was confused, he did not go crazy.

Lu Yun felt that he had learned ninety percent of these herbal knowledge, and only one percent he didn't know, which was also the reason why he could bear it.

He was able to succeed thanks to the memory he already had in his soul, otherwise this data knowledge would have been enough to make people completely insane.

Seeing that Lu Yun had calmed down, Zhuo Buyan hurriedly removed his helmet.

Lu Yun sat quietly in his chair, his eyes were empty and blank, and he didn't seem to have any agility.

Li Qingfeng's face changed greatly, and Zhuo Buyan's face was gloomy, this situation was the last thing they wanted to see.

The three of them were at a loss at this time, and if Lu Yun really became a madman, they didn't know how to deal with it.

Lu Yun was quickly learning the knowledge of herbs that he didn't know at the moment, much faster than reading.

However, there are also drawbacks, although he is fast, he is only scratching the surface of some knowledge that needs to be constantly understood, and cannot really grasp the meaning.

As the hour passed, he felt mentally exhausted, and his eyes gradually returned to their brilliance.

When he saw Li Qingfeng and the three of them squatting beside him with their heads bowed as if they were squatting in a pit, Lu Yun showed doubts.

"What is this for?"

When the three of them heard Lu Yun's voice, they jumped up suddenly, and Zhuo Buyan hurriedly rushed forward to carefully check Lu Yun's situation.

Li Qingfeng was overjoyed, great, Lu Yun withstood it and there was no problem.

Lu Yun naturally knew the danger just now, and the three of them were worried about him, which made him very moved.

"I'm fine, I'm just a little tired!"

"By the way, how long has it been?"

"It's only been an hour!" Li Qingfeng replied.

Lu Yun was overjoyed in his heart, it was really powerful, and it could greatly improve efficiency.

As soon as he wanted to say something, he felt a strong exhaustion hit him, and he closed his eyes in his chair and fell asleep.

When Lu Yun woke up and his spirit had completely recovered, he looked at the machine again, which made Zhuo Buyan's eyelids jump.

"No, once you're lucky, don't try again."

Lu Yun shook his head: "It's okay, I think I can bear it!"

The first time he didn't understand, he suffered a big loss, but it also gave him ideas.

Since a certain type of knowledge indoctrination is risky, then he can divide it several times and reduce the risk.

He can bear even a certain kind of things, and he will be able to bear them when he is separated.

Lu Yun informed the three of them of his thoughts, Zhuo Buyan strongly objected, and Li Qingfeng was silent.

Only Zhuo Feng nodded: "It makes sense, you can try."

Zhuo Buyan's eyes were cold: "Zhuo Feng, what do you mean?" Hurt Lu Yun! ”

Zhuo Feng shook his head and said: "I don't have the intention of harming, Lu Yun has cultivated the Immortal Dao, and his spirit is far greater than that of a strong spirit before the catastrophe, and the risk will be very small."

"What's more, he has resisted just now, I think he must be sure in his heart, and he will definitely be able to resist next, he will not risk his own life."

Lu Yun nodded: "Senior Zhuo is right, I don't think there will be any problems."

Zhuo Buyan and Li Qingfeng persuaded for a long time, but Lu Yun still insisted, and in the end, Lu Yun could only come.

Lu Yun put on his helmet again, and this time he chose history books and instilled a tenth.

The spiritual indoctrination started again, and although there was also an impact this time, he was completely able to withstand it, and his expression was naturally a lot.

When the indoctrination was over, Lu Yun activated part of his memory again.

Zhuo Buyan and Li Qingfeng were completely relieved, and it seemed that Lu Yun had no problem at all.

Next, Lu Yun began to receive mental indoctrination non-stop, except for the rest of mental exhaustion, the rest of the time was carried out.

More and more memories were activated, more and more knowledge was instilled, and Lu Yun became different, his eyes were full of depth.

Finally, the five crystals were read by him!

Lu Yun poured everything he wanted to know into his brain, and his knowledge reserve reached an astonishing level.

Still, he was filled with regret because he read less than a tenth of the books, and there were many more that he didn't read.

These books are all treasures of humanity, covering all aspects, and if you read them all and study them carefully, you will become an all-round expert, and even recreate the glory and prosperity of the great times before the great catastrophe of mankind.

But Lu Yun didn't have time to indoctrinate anymore, this time he remembered the time, and five days had passed.

If it continues, it will take at least two months to instill all the books.

Lu Yun shook his head, it doesn't make much sense to instill too much, manpower is limited after all, even if he indoctrins it all, he may not be able to learn it all in his life.