Internal Breath flowed through his meridians.

As soon as they surged out of the main meridians, they instantly divided into more than a hundred and flowed into the hundreds of connected secondary meridians. After circulating again, they seeped into tens of thousands of extremely small fine meridians scattered densely in the body. Then, they seeped out of the surface of the body and formed a high-frequency vibration state at the same time, covering the entire surface of the body.

A large amount of spatial energy was instantly attracted and seeped into his body through his entire body. Then, it circulated throughout his body through tens of thousands of fine meridians along with the trajectory of his Internal Breath. Then, it formed a simple cycle in his dantian and flowed out.

His Internal Breath had always been maintained, and the spatial energy had always circulated outside and in his body.

After maintaining this cycle for more than ten times, his Internal Breath suddenly moved and changed its trajectory. The spatial energy attracted by his Internal Breath immediately changed its trajectory, and the cycle formed in his dantian also changed slightly.

After continuing this cycle for more than ten times, his Internal Breath moved again…

…

Chu Nan gently exhaled and stopped his Internal Breath circulation before concentrating.

Be it what Angie Prairie had said herself or the various information he had read in the library management, they all showed the same reason.

If he wanted to break through the Cosmic Heaven’s Gate, he had to first complete a complete spatial energy cycle in his body and have the ability to maintain it. In layman’s terms, it was to form an Internal Cosmos in his body.

However, the deeper Chu Nan cultivated his Internal Breath and his understanding of spatial energy, the more he discovered a problem.

It was not a problem for the so-called Internal Cosmos to temporarily form. He could even allow spatial energy to form many complete circulation channels in his body at the same time. In layman’s terms, it was to form many Internal Cosmos at the same time.

However, he could not maintain it forever.

At first, he felt that this was because his Internal Breath was not deep enough. However, after cultivating for a period of time, he discovered that this was not the main problem.

This was because the existence of the Internal Cosmos was to maintain a fixed and stable spatial energy circulation channel. Although it was related to the strength of Internal Breath, it was not the most important factor.

The most important factor was the structure of this spatial passageway, which was the Internal Cosmos.

To put it bluntly, every complete Internal Breath cultivation method would give a detailed plan for the key to breaking through the Cosmic Heaven’s Gate to build an Internal Cosmos and help martial artists who cultivated this cultivation method build an Internal Cosmos.

However, although there were some relevant descriptions in the cultivation method of the Nine Revolutions Technique left behind by Su Xuansheng, it was extremely vague and had very little reference.

Moreover, Chu Nan had already changed the Nine Revolutions Technique beyond recognition with his powerful data ability. It completely exceeded the scope of cultivation in the cultivation method left behind by Su Xuansheng.

Therefore, even if he left such a cultivation method, Chu Nan could not use it.

The method that was suitable for Chu Nan could only be explored by himself.

Chu Nan thought for a moment and picked up a book beside him to flip to the page he had just opened.

What was recorded on it was a detailed record of a martial artist who had created his own cultivation method to break through the Cosmic Heaven’s Gate. Through this detailed record that was personally recorded by this martial artist, Chu Nan could clearly see some of the problems that a martial artist who had created his own cultivation method had encountered when breaking through the Cosmic Heaven’s Gate, and it inspired him.

In this record, this martial artist had also encountered a problem with the cultivation method when constructing his Internal Cosmos. The solution he adopted was to explore and experiment bit by bit, circulating the spatial energy according to the trajectory of his Internal Breath.

During this cycle, he discovered that this cycle gradually stabilized. In the end, the Internal Cosmos formed in his dantian became stable from unstable to stable. Then, he naturally broke through the Cosmic Heaven’s Gate and became a Void Break Martial Artist.

From this record, what this martial artist used was a stupid method. It was similar to martial artists in the Overlord Body Realm who used their Internal Breath to slowly refine their bodies to increase their strength through persistent cultivation.

However, he was using spatial energy to refine it further. It actually gradually stabilized his Internal Cosmos and finally successfully broke through.

What Chu Nan had done earlier was an attempt according to the record he had left.

Unlike this martial artist, because Chu Nan had a powerful data ability and could clearly sense any small changes in his body, he did not have to uniformly cultivate according to a trajectory like this martial artist and slowly sense the stable formation of his Internal Cosmos.

Chu Nan only needed to circulate it once to detect if it was effective through the various changes in his body.

The experiment results showed that this was indeed an effective method.

The first time Chu Nan tried it, he completely circulated his Internal Breath according to the fifth level of the Nine Revolutions Technique.

After circulating it for a cycle, he discovered that there were indeed some changes in the meridians in his body and the vicinity of his meridians, but these changes were extremely weak, so weak that he almost did not discover them with his powerful data ability.

This result disappointed him.

This was because if he wanted to increase the stability of his Internal Cosmos according to this increase, he had to at least experience a cycle of more than 100,000 cycles.

According to his current meridians and body, he could only endure 36 cycles of cultivation every day. This would take ten years to complete.

This method might be feasible, but Chu Nan would definitely not accept such a long time.

Therefore, he tried to use the fifth level of the Nine Revolutions Technique that he modified next. The result was that this did not bring about any more increase. In fact, when he mobilized all the meridians in his body at the same time for the last time, including the fine meridians, to circulate his Internal Breath and absorb more spatial energy, he discovered that the increase brought about by the few spatial channels was actually slightly weaker than before. He almost could not sense it.

Therefore, he understood that the problem was definitely not in the cultivation method, but something else.

After thinking for a moment, Chu Nan picked up another book.

This was not a notebook record, but a book of pure research nature. The title was “On the Deep Tempering of the Body after Breaking through the Overlord Body Realm”. The author was an unknown martial artist. According to the introduction on the title page, he seemed to be a Heaven Control Martial Artist from the United States of Melaita. It was unknown who he was.

This was an extremely rare paper book in modern society. On every page, there were many reading notes left behind by future generations. It could be said to be very precious information that had already surpassed the extent of ordinary books.

If not for the library of the Star Cloud Academy’s Martial Arts Branch, it would definitely be very difficult for Chu Nan to come into contact with such a precious thing elsewhere.

From this point alone, he was very grateful to Sun Xiangren.

Not only did Sun Xiangren tell Chu Nan that there was a lot of information that was beneficial to him in the library, he even gave him a special authority in advance, allowing him to enter the library at will and even read most of the information.

To ordinary students, the information in the library was also divided into levels and needed to be borrowed according to the students’ levels.

With the information Chu Nan had seen, he, a newly promoted E-rank student, could not come into contact with it.

Clearly, this was some compensation from Sun Xiangren to Chu Nan, so he obediently accepted it.

“Hmm… In the end, it’s still related to the body.”

Chu Nan flipped through the book again and confirmed this conclusion.

After thinking for a moment, he had a thought.

“Perhaps… I can try this.”