Seeing that Father Lin was fine, Ye Xuan breathed a sigh of relief.

When leaving the Immortal Village, the old man Chongyang repeatedly told Ye Xuan not to inject feelings into the mortal world.

At that time, Ye Xuan agreed very simply, and even he didn't know too well what the so-called injection of feelings was about the old man Chongyang.

But after surviving alone in the mortal world for a while, Ye Xuan seemed to understand what Old Man Chongyang's words meant.

As we all know, cultivating immortals and cultivating immortals is a ruthless and unwilling.

Immortals, such creatures, if you put aside all kinds of magical abilities that are inconceivable to mortals, what remains is nothing more than immortality.

This immortality is also a good wish that the sages of the Xia Kingdom have been unremittingly pursuing in thousands of years of civilization.

And in order to achieve immortality, the first thing to do is to nourish qi and stop leakage.

Putting aside the cultivation of qi for the time being, how to stop leakage?

Stop leakage, as the name suggests, is to prevent leakage!

Prevent the leakage of the essence of the human body!

So why does the essence of the human body leak out? Because people have feelings, desires, and can hear, see, and perceive.

Joy, anger, sorrow, thought, sadness, fear, surprise, lust, appearance, prestige, speech, slippery, human desire.

These seven emotions and six desires consume people's essence all the time, making them constantly aging since birth.

Therefore, in order to live forever, you must first break off your desires.

A sage said: "If there is love in the sky, the sky will be old!"

If there is love in the sky, it will still be old, let alone people?

That's why the old man Chongyang repeatedly told Ye Xuan not to inject feelings into the mundane world.

However, at this moment, Ye Xuan has obviously forgotten the advice of the old man Chongyang.

The current Ye Xuan, although he is still relentlessly pursuing the immortal path, he is slowly beginning to learn to feel the seven emotions and six desires of mortals.

Ye Xuan doesn't like the feeling of crying, but he likes to laugh and be with friends.

And because of his relatively strong ability, Ye Xuan habitually wants to protect the weak around him.

Just like at this moment, the thought in Ye Xuan's heart is just to want Father Lin's safety.

"Immortal Dao is ruthless, I want to be a sentient immortal. Ye Xuan thought in his heart.

Although Father Lin did not have any problems, and Ye Xuan did not find anything abnormal in the research institute, Ye Xuan did not leave the research institute immediately, but sat down on a chair not far behind Father Lin.

Ye Xuan always thought about the Demon Suppression Talisman in his heart, a wandering monk, inexplicably spent a lot of mana to make the Demon Suppression Talisman, and then gave it to Father Lin plainly, is that possible?

Ye Xuan was sure that there must be some potential threat around Father Lin, and Ye Xuan had a feeling that this potential threat existed in this research institute.

Father Lin didn't know that there was someone behind him, let alone some kind of danger around him, and at this time he was staring intently at the changing data on the screen in front of him.

For a whole hour, Father Lin remained motionless and kept looking at the data.

If Ye Xuan hadn't been able to sense the abundant vitality contained in the body not far away, I'm afraid he would have thought that something had happened to Father Lin.

"What the hell are you doing!"

After staying for another half an hour, seeing that Father Lin still didn't move, Ye Xuan stood up and came to Father Lin's side and glanced at the instrument in front of the latter.

When he saw clearly the thing on the instrument in front of Father Lin, Ye Xuan was stunned and said, "No, he is actually studying this." ”

To be honest, since entering the mundane world, Ye Xuan has read a lot of books, basically whether it is a physical book or a material on the Internet, as long as it is a book that he can find, he has basically seen it.

Therefore, the dense data in front of Father Lin could be understood at a glance.

Swap your head!

What Father Lin is studying is actually a head swap technique.

This head swap is just a name defined by Ye Xuan, but it is not actually a spell, but a kind of medical operation similar to heart and kidney.

Although the technology of modern society has developed enough, ordinary mortals still face birth, old age, sickness and death.

This has nothing to do with whether or not the immortal path is spread, even if someone deliberately spreads the immortal way, but can mortals really give up the seven emotions and six desires to practice the immortal way? The answer is no!

Not to mention giving up seven emotions and six desires, I am afraid it is impossible for you to let a person who likes to eat spicy food have no soup and little water every day.

The temptation of the mundane world is too great and too great!

Although he is unwilling to practice the Immortal Dao, are mortals really not afraid of death?

That's even more nonsense! I don't cultivate the Immortal Dao just to enjoy the prosperity and beauty of time, if I die, then how can I enjoy it?

Therefore, although they are unwilling to cultivate immortals, mortals are the most afraid of death!

But if you don't cultivate immortals, you will definitely die, so what should you do? If you can't live forever, mortals can only use various ways to keep extending their lifespan.

Medical skills are one of the most direct means.

As far as the cutting-edge medical skills that Ye Xuan has learned are concerned, there are heart exchanges, kidney exchanges, and even blood exchanges, which Ye Xuan can understand and accept!

But this change of head...

To be honest, even a person like Ye Xuan, who cultivates the Xuanmen Immortal Dao, feels incredible when he sees it.

Curious, Ye Xuan simply moved a chair, sat next to Father Lin, and watched with Father Lin.

With the beating of the data on the instrument in front of him, the more Ye Xuan looked at it, the more frightened he became!

Because he found that the head swapping technique that Father Lin and the research institute engaged in did not seem to be nonsense, but had entered the final stage, and even the research institute had already conducted an experiment with animals in advance!

Moreover, the experiment was successful.

"This, isn't this something that goes against the way of heaven" Ye Xuan glanced at Father Lin, only to see the resolute look on the latter's face.

Ye Xuan touched his chin and thought for a long time, shook his head and said to himself: "No, I have to find a way to stop this." ”

You must know that although in terms of organ structure, human beings are not much different from other mammals, but after all, human beings are human beings, and they are the only spiritual race recognized by the Great Dao of Heaven and Earth.

If the other races change their heads, if the human race changes their heads, not to mention how difficult it is for the time being, I'm afraid that even if it succeeds, it will definitely be condemned by the Great Dao.

Although the human body is flesh and blood, from the perspective of Taoist practice, the human body is composed of essence, qi and spirit.

Ancestral acupuncture, Nakata, and Shimoda, these three acupuncture points represent the essence and spirit, and they are all indispensable.

The head swapping technique is equivalent to placing one person's body on the essence and qi of another person.

Isn't this equivalent to interbreeding between animals?

It is true that different animals can breed with each other, but can the new species produced by the hybridization be counted as one species?

Not even to reproduce, it would be more reasonable to call it a monster than a new species.

Not being able to have children is the punishment of heaven for hybridization between different animals.

Now that the Huahai Research Institute is actually going to study the head swapping technique, if it succeeds, how the Heavenly Dao will punish the human race, Ye Xuan doesn't know. But what he can be sure of is that this punishment will not be too light!

Since the consequence of indiscriminate interbreeding is the inability to have children, the consequence of changing heads is most likely to be a decline in the overall intelligence of human beings.

Thinking of this, Ye Xuan suddenly began to rejoice, fortunately he didn't leave just now, fortunately he took a look out of curiosity, otherwise, Father Lin was afraid that he would have to be played to death by himself.

"How can I destroy him?" Ye Xuan stood up and walked back and forth in place for a few steps, and then his eyes fell on the instrument in front of Father Lin.

Ye Xuan didn't know what this large instrument was, but since there were buttons on it, it must be something similar to a computer, or simply a computer.

Since it is a computer, it will not be difficult for Ye Xuan.

"Hehe, uncle, I'm doing this for your good, you don't blame me!"

With a wicked laugh, Ye Xuan flicked his fingers, and on the shelf behind Father Lin, a test tube filled with unknown liquid immediately fell to the ground.

"Smack!"

The test tube made of glass shattered, and the liquid inside spilled all over the floor.

"Huh?" Father Lin heard the movement and glanced back.

"Shhh

Perhaps it was the reason why the liquid in the test tube was very important, Father Lin hurriedly turned around, took a new test tube from the table, and began to carefully collect the liquid scattered on the ground.

When Father Lin turned around, Ye Xuan quickly set up a soundproof formation between the data instrument and Father Lin.

Then, Ye Xuan began to sit in front of the instrument, stretched out his two big hands, and pressed them randomly on the buttons of the instrument. It wasn't until the instrument screen became flickering and began to emit white smoke that Ye Xuan stopped with satisfaction.

"It's okay, not all of it was wasted!"

Soon after Ye Xuan stopped, Father Lin also cleaned up the liquid on the ground.

And when Father Lin looked back at the instrument, he was dumbfounded.

"Ahh

Looking at the instruments that kept emitting white smoke and had even begun to flash, Father Lin suddenly became anxious.

"Bang Bang!"

Father Lin walked to the instrument and quickly pressed a few buttons, but found that it was useless, so he hurriedly walked to the wall on the side and pressed a fist-sized thing on the wall several times.

Ye Xuan guessed that the thing that Father Lin pressed should be the alarm device in this research room.

Sure enough, not long after Father Lin pressed the button on the wall, the alarm began to sound throughout the research institute.

"Lao Lin, what's wrong?"

A few minutes later, a middle-aged woman in a white lab coat entered. Behind her, there were dozens of security personnel from the research institute!

"Dean, you're here just in time! find someone to see what's going on!"

Seeing the middle-aged woman, Father Lin hurriedly greeted him, took the latter's arm and said hurriedly.

The middle-aged woman looked behind Father Lin, and when she saw the sparkling instrument, her face suddenly changed, and she said tremblingly: "Old Lin, this, what's going on?"