Could it be that Lu Lin's use of spiritual power is wrong? Awakening the sleeping Void Xuan, Lu Lin informed him of his doubts.

"Are you holding a branch that has just been broken?"

"Yes!" Lu Lin looked at the branch in his hand, couldn't the branch work? Kong Xuan hadn't told him that he couldn't use any materials before.

"When you choose your tools, you should choose dead things, and living things cannot be seen with your current mental power. Kong Xuan told Lu Lin about the steps of making the space sac again, and then fell into a deep sleep again, and told Lu Lin not to wake him up if there was nothing important.

Throwing away the branch in his hand, Lu Lin picked up a stone at his feet. Sure enough, when Lu Lin probed with his spiritual power, he was not only able to check the appearance of the stone, but also the irregular space inside the stone.

According to the method taught by Kong Xuan, the Yuan Core in Lu Lin's body began to operate, and Lu Lin had no time to cultivate his Yuan Core for more than 20 days, but the spatial Yuan Qi was pouring into his body all the time.

This is the benefit of condensing the Yuan Core, you can cultivate all the time, and even if you don't cultivate the Yuan Core, you can absorb the Yuan Qi.

In fact, when he first listened to Chen Zixuan's explanation of the Yuan Core, Lu Lin was very worried about the instability of his Yuan Core, after all, his Yuan Core was condensed with violent Yuan Qi.

Since you want to construct a meta core, it must be a gentle meta qi that is the best, but Lu Lin's situation is involuntarily.

In order to reassure himself, Lu Lin wanted to ask Kong Xuan to help him solve the problem of the Yuan Core first, but such a request made Kong Xuan even more unhappy.

It turned out that Kong Xuan was still haunted by fusing the crystal he was sleeping with Lu Lin's Yuan Nucleus, in his words, although he didn't know what the Yuan Core in the Sage's body looked like, but the Yuan Core he was sleeping on was definitely no worse than the Sage's Yuan Nucleus.

This inconsistent statement made Lu Lin feel very unreliable, but carefully observing his own Yuan Core, Lu Lin couldn't find anything wrong.

In desperation, Lu Lin could only give up, hoping that what Kong Xuan said was true.

After losing the concerns of the Yuan Core, Lu Lin began to cultivate his spiritual power.

Most of the people in their class have been consolidating their meta-nucleus recently, and although the meta-nucleus has been finalized, it is still possible to stabilize the meta-nucleus structure through acquired efforts.

......

He carefully injected the spatial vitality into the stone in his hand, but the stone in Lu Lin's hand shattered just at the beginning.

Lu Lin, who was already mentally prepared, picked up the stone at hand again and began to try again.

After repeated ten experiments, Lu Lin reduced the input of vitality again and again, but the stones were all shattered before the spatial vitality entered.

These ten experiments also depleted Lu Lin's spiritual power, which was different from the consumption of vitality, after the consumption of spiritual power, Lu Lin suddenly felt very tired, as if he had repeated a whole day of vitality cultivation.

While teaching him how to make the space capsule, Kong Xuan also taught him a method of restoring his spiritual power - the Divine Cultivation Decision.

Different from the consumption of vitality, vitality can be restored through meditation, when meditating, mental power will be used to perceive the surrounding vitality, but this does not consume spiritual energy, and even vitality will stimulate the growth of mental power.

As long as you close your eyes and recuperate, you can recover your mental power, this method is very slow, the most direct way is to sleep, you will feel refreshed when you wake up, but this method is a waste of time.

It is a way to rest the brain, which puts the brain in a state of deep dormancy, which is similar to sleeping, but in a much shorter time.

It only took half an hour for Lu Lin's mental power to recover, and he could even clearly feel the things around him.

Compared to the consumption of spiritual power, the consumption of vitality in Lu Lin's body was negligible, because the consumption of vitality in each experiment was negligible to him who had already condensed the yuan core.

Now it seems that Lu Lin is still a long way from making a space sac.

......

There are no years in cultivation, and a month may pass very slowly for ordinary people, but for cultivators, a month passes in the blink of an eye.

For a month, Lu Lin was cultivating his spiritual power, and he didn't have time to cultivate his vitality at all, most of the people in the class were already third-order junior martial artists, and those who were a little stronger, such as Dongfang Mingyue, were already third-order intermediate martial artists.

Although Lu Lin is diligent, he is only staying in the realm of the primary level of a third-order martial artist, Tian Feng is already ready to break through to a third-order intermediate martial artist, although Lu Lin is envious, he does not regret the cultivation of spiritual power.

After more than a month of spiritual power cultivation, Lu Lin already felt that his spiritual power had increased by about double, and now when he meditated, Lu Lin could feel the spatial vitality within a meter of his body.

The enhancement of spiritual power not only increased the range of Lu Lin's ability to perceive spatial vitality, but also enhanced Lu Lin's ability to control spatial vitality a lot.

Maybe the cultivation of spiritual power has dragged Lu Lin backwards now, but Lu Lin can feel that as long as the cultivation of spiritual power is enhanced, it will only be beneficial to Lu Lin's cultivation in the future.

They hadn't received Chen Zixuan's class notice for a month, and it wasn't until the day before yesterday that Lu Lin and the others saw that there was a class today on the bulletin board at the door of the classroom.

There are four classes in the third grade, adding up to more than a hundred people, and the people in the other three classes rarely attend classes, but they will also have at least four classes every month, unlike Lu Lin and them, Chen Zixuan only gives them a lecture once a month.

In this class, Chen Zixuan still gave them a lecture like a normal teacher, and did not let them do anything unrelated to the class, which made Lu Dejin, who was afraid of Chen Zixuan, suddenly uncomfortable.

Chen Zixuan still told them about the knowledge related to the meta-core this time, different from the previous condensation of the meta-nucleus, this time Chen Zixuan mainly told them how to stabilize their meta-nucleus.

After the condensation of the Yuan Core, the martial artist will rely on the Yuan Core for cultivation, and the difference in the quality of the Yuan Core will gradually appear when he becomes a high-level martial artist in the future.

For martial artists with a stable meta-core structure, the impact of the Yuan Qi they can withstand is also stronger, and the martial artists who simply condense the Yuan Core cannot withstand the greater impact of the Yuan Qi, so they have no chance to become a higher-level martial artist through the cultivation of the Yuan Qi.

It is impossible for a martial artist who simply condenses the Yuan Core to break through to become a Sage, but if the internal structure of the Yuan Core is strengthened through the efforts of the day after tomorrow, it is still possible to become a seventh-order martial artist, and if there is an adventure, they will even become an eighth-order or even a ninth-order martial artist, but the instability of the foundation has already doomed them to be impossible to break through and become a Sage.

When Chen Zixuan said that a martial artist who simply condensed the Yuan Core could also break through to become a ninth-order martial artist, the classroom instantly boiled.

Even if they knew that Chen Zixuan had a bad temper, they couldn't hold back the excitement in their hearts, and it was every martial artist's dream to become a high-level martial artist.

Originally, the meta-core can be reconstructed through acquired efforts, but the meta-core can only change when it breaks through the rank, so it cannot be rushed through in future breakthroughs, and it is necessary to strengthen the meta-core through the meta-energy.

Different from the time of condensing the Yuan Nucleus, the reinforcement of the Yuan Core needs to endure several times more pain than the time of condensing the Yuan Nucleus, which is the unstable part of the Yuan Core that needs to be re-condensed.

......

Lu Lin listened carefully throughout the process, and he didn't want to miss any of Chen Zixuan's words. From the evaluation of Chen Zixuan between Kong Xuan's words, he already knew that their Teacher Chen was not simple.

The methods that Chen Zixuan taught them were not gentle methods, and in the eyes of other teachers, they were even practices that could threaten the lives of students.

But it is undeniable that Chen Zixuan did tell them the way to solve the problem, and it is up to the students themselves to choose.

When it was said that there was a danger to the lives of the reinforcement of the Yuan Core, the faces of many students changed, and most of the people who could come here were the children of rich families, even if they didn't become martial artists, they could still live the life of a superior person.

They came to the school more for a name, and let them risk their lives to cultivate, they naturally didn't want to.