According to the Nine Revolutions Technique left behind by Su Xuansheng back then, in theory, even if he only cultivated the first level of the Nine Revolutions Technique, he could reach the Nine Revolutions Internal Breath.

However, after countless experiments, Chu Nan confirmed one thing. No matter how much his Internal Breath circulated, it would ultimately be limited by the upper limit that his meridians could endure.

Chu Nan had now cultivated to the fifth level of the Nine Revolutions Technique. With the strength of his meridians that had been tempered many times, he could only endure all the Fifth Revolution Internal Breath. It helped his Internal Breath to be powerful enough to be compared to a fifth-stage Internal Breath Martial Artist when it erupted.

As for the Sixth Revolution Internal Breath, Chu Nan had tried it before, but he immediately discovered that the strength of his meridians was insufficient and could only give up.

However, he had experienced all kinds of things during this period of time. The strength of his body had clearly increased in all aspects, and his meridians had also obtained a qualitative leap after introducing spatial energy. From the data, it should not be a problem for him to endure the Sixth Revolution Internal Breath.

Now that he had nothing to do on the spaceship, Chu Nan began to try again.

With a thought, he pulled out his Internal Breath from his dantian and quickly circulated it. Soon, he completed the Fifth Revolution Internal Breath.

Then, he did not stop and continued to circulate his Internal Breath to enter the Sixth Revolution State.

However, as soon as he circulated his Internal Breath, Chu Nan immediately frowned.

Without the reminder of the tearing pain in his meridians, just from the various statistics he felt in his meridians, he could clearly sense that his meridians were still unable to endure the overly powerful Sixth Revolution Internal Breath.

Chu Nan felt a little strange.

Be it his own senses or precise data, the strength and toughness of his meridians had clearly increased during this period of time. Why was he still unable to endure the Sixth Revolution Internal Breath?

Could it be that he had not improved enough?

Chu Nan thought for a moment but still did not stop circulating his Internal Breath and continued to urge it.

The Sixth Revolution Internal Breath that was clearly much stronger than the Fifth Revolution Internal Breath completely flowed through the first meridian, but it also nearly completely destroyed this meridian. Chu Nan’s body could not help but sway, and his cheeks bulged as blood flowed out from the corner of his mouth.

Chu Nan looked around and hurriedly lowered his head to spit out the blood in his throat on his hand. He then wiped the corners of his mouth with a piece of paper and sat back down as if nothing had happened.

After circulating his Internal Breath to check again, Chu Nan confirmed that the meridian was indeed almost completely crippled.

However, this was not a big problem for him. He mobilized his high-frequency vibration Internal Breath and cooperated with the Flame of Life to circle around that meridian a few times. Soon, his meridian recovered to normal.

However, after his meridian recovered, Chu Nan was surprised to discover that although this meridian had clearly increased in strength and toughness compared to before, the increase was minimal. Even with his powerful data ability, he could only sense an extremely small change and it could even be considered nothing.

Compared to the increase after he forcefully broke through the Third Revolution, Fourth Revolution, and even Fifth Revolution Internal Breath, this increase could be ignored.

Such a small increase was naturally not enough to make this meridian endure the Sixth Revolution Internal Breath.

Chu Nan thought for a moment and circulated his Internal Breath again to reach the Fifth Revolution. Then, he continued to circulate it. This time, he changed his meridians to experiment.

His body swayed again and he spat out another mouthful of blood.

Then, he continued to use his high-frequency vibration Internal Breath and Flame of Life to repair this meridian. In the end, he discovered that the increase in this meridian was also minimal.

Chu Nan did not give up and tried a few more meridians. In the end, he discovered that the increase in recovery after the other meridians were damaged was still extremely small and could not be compared to before.

There was no need to try the remaining meridians. Chu Nan could confirm that the meridians in his body had already been repaired after he was injured many times and had almost reached the limit after using spatial energy to refine them. It was impossible for them to have any obvious increase.

In other words, his meridians had almost reached the limit of the human body in terms of strength and toughness. It was impossible for him to dig out too much potential in this aspect.

Then, how did the Sixth Revolution Internal Breath come about?

Chu Nan frowned deeply.

Back then, Su Xuansheng had cultivated the Nine Revolutions Technique to the seventh level and had successfully achieved the complete Nine Revolutions Internal Breath. Although no one had cultivated the Nine Revolutions Technique to the seventh level after him, there were still people who had cultivated it to the sixth level. This meant that at the very least, the sixth level could still be successfully cultivated by others.

Then how did they do it?

After thinking for a moment, Chu Nan opened his personal terminal and carefully looked at the Nine Revolutions Technique that he had always kept in it.

He first carefully read the first five levels of the cultivation method. After comparing them with his own situation, Chu Nan confirmed that his previous cultivation should not have deviated from the Nine Revolutions Technique left behind by Su Xuansheng. Then, he began to seriously read the sixth level.

Compared to the first five levels of the cultivation method, the introduction of the sixth level was much simpler.

The first five levels of the cultivation method explained the trajectory of the Internal Breath circulating in the meridians in detail. However, the sixth level of the cultivation method only simply indicated that martial artists who needed to cultivate to the sixth level had to pay attention to the Internal and External Combination, allowing the Internal Breath to fuse with the body, and the body to fuse with the universe. There were not many clear instructions.

“In other words, I’ve reversed the order? I have to break through the Cosmic Heaven’s Gate before I can break through the sixth level of the Nine Revolutions Technique?” Chu Nan frowned in confusion before shaking his head and rejecting this thought.

Breaking through to the sixth level of the Nine Revolutions Technique could definitely allow one to break through the Cosmic Heaven’s Gate. However, the Nine Revolutions Technique left behind by Su Xuansheng clearly stated that the level of the Nine Revolutions Technique was not too directly related to the level of a martial artist. If a martial artist was talented enough, they could even comprehend the ninth level of the Nine Revolutions Technique when they were still an Internal Breath Martial Artist.

Of course, he had only successfully broken through to the seventh level when he became a Heaven Control Martial Artist.

As for the eighth and ninth levels? He had not been able to break through until he became a Star-Grade Martial Artist and died.

“Therefore, this is only a realm of comprehension that has nothing to do with one’s strength. Then, how can I reach the sixth level of the Sixth Revolution Internal Breath? This has broken through the limit of the human body.”

Chu Nan frowned and pondered.

After a while, his expression suddenly changed as his gaze landed on the words “Internal and External Combination”.

There was a limit to the body, but there was no limit to the world outside the body.

Since the limit of the physical body and meridians could no longer endure the Sixth Revolution Internal Breath, couldn’t he just not let the Internal Breath complete the Sixth Revolution in the meridians?

At first, Chu Nan thought that this idea was too whimsical, but after reading the introduction of the sixth level of the Nine Revolutions Technique twice and recalling some of the things he had investigated about Su Xuansheng, combined with his own comprehension, she felt that this idea was becoming more and more feasible.

He did as he thought.

Chu Nan immediately mobilized his Internal Breath and quickly completed the Fifth Revolution Internal Breath. Then, he let it out of his body and controlled it to begin the Sixth Revolution.

However, as soon as he did this, his Internal Breath had already lost control and disappeared from his body.

After Chu Nan tried a few times and failed, it meant that his idea was clearly wrong.

“Then what does the Internal and External Combination mean?”

Chu Nan urged his Internal Breath to circulate outside his body as he pondered this question.

Because every time he controlled his Internal Breath to circulate outside his body, it was to attract spatial energy, he subconsciously adjusted his Internal Breath to a high-frequency vibration state again.

Feeling the spatial energy surging from all directions, Chu Nan’s heart suddenly stirred.

“Perhaps this can be done?”

He controlled his Internal Breath to continue maintaining a high-frequency vibration state, causing it to attract spatial energy to enter his meridians and fuse with his Internal Breath.

Under normal circumstances, this spatial energy would only pass through his body and not leave anything behind.

However, this time, Chu Nan deliberately controlled his Internal Breath and guided this spatial energy to circulate in his meridians again and again. He followed the Nine Revolutions Technique to stimulate the trajectory of the high circulation of his Internal Breath and circulated it together with it.

Soon, his Internal Breath completed the Fifth Revolution. Then, Chu Nan was surprised to discover that the spatial energy had followed his Internal Breath to complete the Fifth Revolution. Just like his Internal Breath, it had clearly become much stronger.

Chu Nan hesitated for a moment before urging his Internal Breath to continue circulating and begin to try again.

The Internal Breath that contained huge spatial energy circulated in his meridians again.

However, this time, Chu Nan discovered that his meridians did not feel any pressure and smoothly completed a cycle in his meridians.

Sixth Revolution Internal Breath!

Feeling the power of the Sixth Revolution Internal Breath, Chu Nan was overjoyed, but he did not stop. Instead, he had a thought and continued to urge his Internal Breath to try the Seventh Revolution Internal Breath!

His Internal Breath combined with the powerful spatial energy again and continued to circulate.

Chu Nan was pleasantly surprised to discover that his meridians still did not suffer much pressure and he completed the Seventh Revolution Internal Breath extremely smoothly.

Then, he circulated his Internal Breath for another cycle and completed the Eighth Revolution Internal Breath.

Another cycle followed.

Nine Revolutions Internal Breath!