All the people are cultivating immortality: I can fast forward infinitely

The teacher didn't even introduce himself and just started teaching.

The content of his lecture can be summarized in two words——

Tempered body.

What we are talking about today happens to be the initial entry stage of body tempering.

That is the eleventh level of Qi refining.

The teacher explained it in detail and also very vividly.

The teacher also used the examples of "gravel" and "powder" that Wu Jun used before.

Of course, he gave a more detailed explanation than Wu Jun's brief introduction.

From how to grind "gravel" into "powder", to how to use the Spirit Quenching Pill and the Spirit Quenching Secret Chamber in the most cost-effective manner.

Finally, we talked about the choice of spirit quenching technique.

The teacher explained the key points of various spirit quenching techniques one by one.

Lin Feng listened very carefully.

Although he may not necessarily learn other spirit-quenching techniques.

But understanding this knowledge can also help him understand it and gain more insights into the eleventh level of Qi refining.

At the same time, he also hoped that what he had mastered might have some effect on the cultivation of the "Nine-Nine Spirit Tempering Techniques".

However, what surprised Lin Feng was——

Just when he was listening with interest.

The teacher seemed to glance at him secretly in the crowd.

Then, he suddenly changed his tone and said: "The above mentioned are all common sense knowledge about spirit quenching."

"Then next, I will talk about some niche and little-known information."

At this point, many students who were originally drowsy suddenly brightened up, and they were obviously interested!

Lin Feng also became interested.

The teacher did not speak directly, but continued to use the example of a glass bottle and gravel: "Here is another glass bottle filled with gravel. Tell me, how should I fill it?"

This was what was said before, and those younger than Lin Feng responded one after another: "Grind it into powder."

The teacher smiled lightly and then snapped his fingers.

As expected, the gravel in the glass bottle shattered into powder, and the amount of powder that could be held increased.

However, just when the students were wondering what the teacher's purpose was.

But suddenly I heard a crisp "click" sound!

Good guy, the glass bottle the teacher gave an example of broke!

For a moment, the classroom was quiet.

The classmates were stunned.

The teacher smiled and said: "This is the situation I want to talk about——"

"Spirit tempering does have many benefits, but throughout the ages, there have been cases of monks exploding and dying during the spirit tempering process!"

"And in this case, it's basically that something went wrong in the cultivation, and it exceeded the limit that the 'glass bottle' can withstand!"

As soon as these words came out, many students frowned instantly.

It's just cultivation, why do you have to train yourself to death?

Fortunately, the teacher smiled and said: "But you don't have to worry, there are very, very few cases of death due to body explosion due to soul quenching!"

"As long as you don't seek death and continue to practice step by step, you will basically not encounter death from explosion."

"However, there are some special spirit tempering techniques, such as..."

The teacher glanced at Lin Feng again before continuing: "For example, in the Sutra Pavilion, there is a book of spirit-tempering techniques that no one has successfully practiced, called the Nine-Nine Spirit-Tempering Techniques."

The "Nine-Nine Spirit Tempering Technique" has long been heard among other members of the military academy.

Many teenagers listened more seriously.

And Lin Feng felt——

This teacher probably knew that he wanted to practice the "Nine-Nine Spirit Tempering Technique".

Li Zhiyuan should have said hello in advance.

Lin Feng thought in his mind.

The teacher continued: "You must have heard that throughout the ages, no one has successfully practiced the "Nine-Nine Spirit Tempering Technique", whether it is in our military academy or in the wider battlefield!"

"But you may not know that the real situation is-"

"Nearly 40.00% of the people exploded and died while trying to practice the Nine-Nine Spirit Tempering Technique!"

"The short answer is-"

"When you practice other spirit-quenching techniques, it is basically difficult to explode your body;"

"But if you are practicing the "Nine-Nine Spirit Tempering Techniques", then the number of cases where your practice goes wrong and ends up costing your life is as high as two out of five!"

"hiss……"

There was a gasp under the podium.

But these students basically just joined in the fun and were shocked by the abnormality of the Nine-Nine Spirit Tempering Jue.

I am afraid that only Lin Feng in the whole classroom is preparing to practice the "Nine-Nine Spirit Tempering Technique".

He could also feel that the teacher's words were specially addressed to him.

I was thinking about whether I should take the initiative to ask why the Nine-Nine Spirit Tempering Jue is so difficult to practice, including the reason for the mortality rate.

The teacher took the initiative to talk again——

"Actually, the reason why the "Nine-Nine Spirit Tempering Technique" is so difficult to refine is because it requires the spiritual energy to be purified to [-]% purity!"

"You should have also noticed a word - purity, and yes, spiritual purity!"

"The glass bottle just broke, so now, let me give you a new example."

He waved his hand and an empty glass bottle appeared on the table.

He asked the teenagers in the classroom: "Excuse me, what's in this glass bottle?"

As he spoke, he nodded to a young man near the podium to answer.

The young man took a few glances at the empty bottle, then frowned and said, "There is nothing in this glass bottle!"

However, the teacher shook his head, and his eyes finally fell on Lin Feng again.

He ordered Lin Feng and asked the same question: "What is in this glass bottle?"

The glass bottle is indeed empty.

But after a moment of silence, Lin Feng replied: "Full of air."

The teacher's eyes suddenly lit up and he gave Lin Feng a thumbs up.

Then Lin Feng sat down and the teacher lectured again:

"Indeed, this glass bottle is filled with air!"

"Actually, it's because the contrast between gravel and powder is easier to capture with the naked eye, so when I first explained the spirit quenching, I used a physical and more intuitive way to give examples."

"But in fact, spiritual energy is neither gravel nor powder after all!"

"And the "Nine-Nine Spirit Tempering Jue" believes that spiritual energy is actually a kind of gas."

As he spoke, he raised his hand to hold up the glass bottle on the table: "Just like my glass bottle, if you look at it, you will think it contains nothing. But in fact, it contains air!"

"In the "Nine-Nine Spirit Tempering Techniques", it is believed that the way to grind spiritual energy is to separate the unnecessary gas from the mixed spiritual energy that one has absorbed!"

"It's like air, which is a mixture of 78% nitrogen, 21% oxygen, and 1% other gases!"

"From this perspective, the process of quenching spirit can be seen as the process of quenching air into pure oxygen."

"But you should know that too, right?"

The teacher paused again, looked at Lin Feng again, and then continued: "Pure oxygen is poisonous!"

"We can understand the general spirit quenching technique as it only purifies spiritual energy, but it does not achieve the ultimate goal."

“Only the Nine-Nine Spirit Tempering Technique truly pursues ‘pure oxygen’, which is pure spiritual energy!”

"But the purest spiritual energy is not something that a monk can withstand during the Qi refining period!"

"So some people, if they can't understand the "Nine-Nine Spirit Tempering Techniques", will just fail to practice it;"

"But some people have good understanding and practice, but they end up exploding and dying!"

The other students listened with interest to this little-known knowledge.

Only Lin Feng fell into deep thought.

If he really followed what this teacher said, if he wanted to successfully practice the "Nine-Nine Spirit Tempering Techniques", he would probably have to find a way to solve the problem of "pure oxygen is poisonous"!

However, how to solve it?

Lin Feng had no clue.

The teacher continued to talk about some knowledge related to spirit quenching, and the lecture was not over until 11:30 in the morning.

The other teenagers left the lecture room.

Only Lin Feng remained where he was.

In the past few minutes, the entire classroom was empty, and he suddenly heard a voice:

"Classmate, it's time to go home for dinner."

Lin Feng raised his eyes and saw the lecturer sitting opposite him with a smile.

"My name is Mingcheng. I come from the Great Compassion Courtyard. This lecture is specially given for you."

Lin Feng nodded and said, "Thank you."

Mingcheng smiled again: "How about it, are you still going to try the "Nine-Nine Spirit Tempering Technique"?"

Lin Feng said without any hesitation: "Of course."

Mingcheng was a little surprised——

After telling him so much, he still wanted to choose the "Nine-Nine Spirit Tempering Technique"!

This kid is really...

Oil and salt do not enter!

Mingcheng stroked his forehead slightly, sighed softly, and continued: "In fact, as the monk's realm continues to improve, the purity of the spiritual energy itself will also improve."

"The Nine-Nine Spirit Tempering Technique is not as good as you think."

Lin Feng nodded: "It's not as good as I thought. Can we lower the price first? Sixty-six thousand is too outrageous!"

"..." The corners of Mingcheng's mouth twitched slightly.

Finally, he stood up and said slowly: "Stubborn boy, I wish you good luck. Let's see when you can break through the eleventh level of Qi refining!"

When did you break through the eleventh level of Qi refining?

Lin Feng is preparing to break through today!

He sat in the classroom for a while and then came to the ninth level of Qiankun Tower again.

Very decisively, he redeemed the "Nine-Nine Spirit Tempering Technique" again!

The staff member who stopped him before was now completely frightened!

I really didn’t expect that after listening to the lecture, this kid would still be so determined to choose the "Nine-Nine Spirit Tempering Techniques"!

Really...

The staff had no excuse to stop him, but he still kindly reminded him: "It is dangerous to practice "Nine-Nine Spirit Tempering Techniques". You can rent a training room on the intranet first. After all, in a virtual environment, you don't have to worry about exploding to death." .”

"Okay, thanks."

Lin Feng accepted the staff's suggestion and went directly into the reading room, his consciousness sinking into the intranet.

The training room on the intranet also costs money to use.

But fortunately, the flowers were spent on spirit stones.

Lin Feng was going through the formalities for renting a training room when suddenly a familiar reminder sounded in his mind.

The sound was almost the same as when he broke the trial tower record, but the content was obviously different——

【Ding! Congratulations to Xuanjixing Qi Kaiwu for breaking the record on the bottom 3 floors of the Climbing Tower! 】

For a moment, the entire intranet was quiet for a long time, and then a crazy discussion quickly broke out!

Lin Feng thought yesterday that the Climbing Tower had nothing to do with him for the time being.

I didn’t expect to hear such an announcement today!