When Chu Nan came to his senses, he found that it was still early, and it was not even bright yet.

But when you think about it, it's not surprising.

The first time he crossed back, he should have been too weak to bear the burden of crossing the two realms, and after he came back, he slept directly until dawn.

The time he spent in the other world, in reality, not much time passed.

But now, naturally, there will be no such problems.

After returning from the crossing, almost instantly, I came to my senses.

He knew that the first time he came back to Ling Yunjue's content was to recall the content of Ling Yunjue.

Although he was not allowed to copy that exercise, he had the ability to remember it.

It's not that difficult to memorize this mantra, which is only a few thousand words.

This is a high-level exercise, used to impact the innate nature, although it is not perfect, but at this stage, it is difficult for him to find a better exercise.

In the Tianxuan Continent, there may be better foundation building techniques than Lingyun Jue, but the difficulty of obtaining them is too great, and it is far from what he can hope for now.

At least, with his current strength, not yet.

Moreover, using Lingyun Jue to build a foundation, even if there are still some shortcomings, it is not impossible to make up for it.

In his memory, there were no less than three ways to make up for Doji.

However, none of this can be done by a True Qi Realm martial artist.

Ten birds in the forest are better than one bird in hand.

He saw this very clearly.

Use the Lingyun Jue first, rush to the innate realm, and only after you have the strength can you be qualified to seek others.

Thinking of this, he couldn't help but completely sink his mind into this exercise.

......

In the Tianxuan Continent, the cultivation of martial arts has gone through several stages.

This point was also mentioned in that ancient qi refining technique.

These different stages also mark the historical division of the Tianxuan Continent.

As an old bookworm, although Chu Nan only understood a general idea, but after just a little thought, he almost understood.

In his view, if the human body is compared to a water tank, then the true qi is the water in the water tank.

And the so-called cultivation is to do everything you can to make the water tank fill with more water.

There are several ways to get more water in a container.

The easiest, of course, is to make the tank bigger.

In ancient times, when the ancestors fought with the sky, the earth, and the wild beasts and brute beasts, they naturally didn't need anything too fancy.

At that time, the cultivation of human beings was to constantly temper the physical body.

The flesh becomes stronger, as if the water tank is made bigger and can hold more water.

This era of cultivation is the ancient era.

In ancient times, cultivation was that simple.

There is no complicated hierarchy, it is just a process of constantly making water tanks and making bigger water tanks......

But the human body has a limit after all.

When it was discovered that when the tank was enlarged to a certain extent, there was no way to expand it anymore.

After all, when the water tank is expanded to a certain extent, it will be beyond the 'social productivity' if you want to expand it again.

At this time, human beings are not yet the masters of the world, and if they want to survive and become stronger, they can only take another path.

Thus, another direction of practice was born.

Since the tank can only be made that big, it is not possible to make the tank that big, but to make it stronger.

Then, as long as the tank is strong enough, the density of the water is compressed.

Theoretically speaking, water is composed of molecular structure, and the molecular structure has large voids in the middle, and if these voids are compressed, the same large water tank can naturally hold more water.

Thus, the cultivation level appeared.

True Qi can be compressed into a liquid True Element.

True element, which can be compressed into mana.

Mana, which can be compressed into immortal power.

Immortal power, which can be compressed into divine power......

The emergence of the cultivation level marks the end of the ancient era and the arrival of the ancient era.

And with the emergence of the cultivation level, human civilization is naturally developing in a blowout.

In ancient times, humans had already dominated the continent.

This kind of cultivation method also seems to be flawless.

But where in the world is there anything perfect.

Even if he is a god-level powerhouse who has achieved cultivation, he is still vulnerable in front of the power of heaven and earth.

According to Chu Nan's estimate, a True Qi Realm master can easily burst out with thousands of kilograms of strength, so those powerhouses who transform True Qi into True Yuan can roughly burst out with tens of thousands, hundreds of thousands of kilograms.

Even if the true element is converted into mana and increased by a hundred times, it can only have tens of millions of kilograms of strength.

As for that kind of immortal-level powerhouse, I don't mention whether everyone is lying about it.

Even if there is such a strong person, with hundreds of millions, billions of kilograms of strength, it will be up to the sky......

After all, the later you go, the more difficult it is to improve, and the difficulty almost multiplies geometrically.

Moreover, such a strong person seems to be extremely powerful, but in fact, when facing the power of heaven and earth, he is also powerless.

Bi Ru, a meteorite impact, a tsunami, a landslide......

The ancients regarded these as the will of heaven to be angry.

In the face of heaven's will, even a god-level powerhouse cannot be disobeyed.

Under these circumstances, a new method of cultivation was born.

That is, the current method of cultivation.

Among them, the most typical representative is this ancient qi alchemy.

Both inside and out.

Internally, constantly strengthening one's own body, and externally, controlling the power of heaven and earth.

In ancient times, no matter which sect it was, when it was cultivating, in Chu Nan's opinion, it was actually much the same.

Inside, as in the Middle Ages, the tank is reinforced, the density of the water in the tank is compressed.

Externally, they began to try to communicate the Yuan Force in heaven and earth.

For example, the power of creating this ancient qi refining technique, I don't know that this qi refining technique has been cultivated to hundreds of billions of billions, so powerful that it can almost manipulate the heaven and earth element power of the entire plane.

This can almost be regarded as incarnating himself as a heavenly dao, the so-called god-level powerhouse in the Middle Ages, in front of such power, it is estimated that he is a scumbag.

And this kind of cultivation method, the key to it, is above the impact of the innate nature.

The bridge between heaven and earth.

The biggest difference between an innate powerhouse and a true qi-level martial artist is in spiritual power, which can communicate with the yuan power between heaven and earth.

Although it is difficult for spiritual power itself to have combat effectiveness, and it is difficult to directly interfere with reality, if spiritual power is strong enough, it can become a bridge between the inner and outer worlds.

The bridge between spirit and reality is the bridge between heaven and earth.

After visualizing the bridge between heaven and earth, the inner heaven and the outer heaven and earth will reach harmony and unity.

Although it is not so that the inner heaven and the earth and the outer heaven and earth are no longer separated from each other, at least, it is not difficult to let the inner heaven and earth be replenished from the outer heaven and earth at any time and at any time.

This is also the signature ability of the innate strong.

What is Innate?

The ability of the human body to practice is acquired from the day after tomorrow, but the innate can draw energy from heaven and earth at any time through the bridge between heaven and earth.

Chu Nan believes that using this way to explain the innate is not far away, although it is not true.

And innate cultivation is actually a 'bridge building' kung fu.

Of course, it's the bridge of spirits.

The innate cultivation method is to visualize a bridge in the human body to connect the power of heaven and earth.

Legend has it that Lao Tzu's Taiji Golden Bridge is like this.

Of course, all kinds of exercises, at this stage, are not the same.

For example, the top-level exercises can visualize the Taiji Golden Bridge that suppresses all Yuan forces, so that kind of Dalu Goods Exercise can only visualize a single-plank bridge.

The difference is incomparable.

Although Lingyun Jue is not the top exercise, it is still very good at this stage of innate visualization.

Otherwise, in the original work, it is not worthy of the identity of the 'protagonist'.

Chu Nan saw that the time was still early, and he couldn't help but build the bridge according to the exercises.

"Well, this is?"

Suddenly, he felt that he had come to a strange place.

In the midst of the chaos, there was a small lake composed of spiritual power......

It was only for a moment that he reacted, this was his own sea of knowledge.

There is not much difference from the interface that usually enters the system in consciousness.

With the help of the system, it was so easy to succeed.

You must know that one of the major levels of impact innate is to visualize the sea.

Many people, for the rest of their lives, are unable to visualize success.

In fact, once the visualization is successful, the rest is just the work of the water mill.

He is now a real innate reserve.

If he hadn't seen it with his own eyes, he wouldn't have dared to believe it.

However, he quickly relented.

At this time, the most important thing is to use the 'lake water' in the sea as a material to build a bridge across the chaotic void above the lake.

This step is actually not that difficult.

After all, even if the mental power is not enough to build a bridge, the method of visualization itself can slowly increase the spiritual power.

What's more, this step is not required to be completed in one step.

It is completely possible to visualize the subject first, and as long as it can be maintained without collapsing, it can be refined step by step.

"Do you want to try it?"

Chu Nan pondered for a moment and decided to give it a try.

Even if it fails, the 'bridge' will collapse, and the bridge will still form spiritual power and flow back into the lake of spiritual power.

Even if there is some attrition halfway, it is not too big, and after a period of recuperation, it will be recovered.

He couldn't help but start mobilizing his spiritual power and following Ling Yunjue's steps to build his own bridge between heaven and earth.

This step is extremely crucial.

The most important thing is to consider whether the spiritual power is strong and how easy it is to build the bridge.

The more top-level the exercises, the more difficult the bridge will be.

For example, the legendary Tai Chi Golden Bridge, even if the exercises are passed down, what can be cultivated is absolutely one in ten thousand.

The most important thing in Lingyun Jue is to visualize his spirit as a divine tree that supports the sky, and the most important thing is that the meaning of Lingyun out of the dust, the bridge between heaven and earth formed by the divine tree, like a rainbow bridge from the clouds.

Chu Nan just sensed it and felt that the problem was not big.

He began to mobilize the spiritual power in the lake, and according to the steps in the secret method, he began to condense the main body of the bridge.

"Huh?"

Suddenly, his spirit moved.

Just as he began to condense this spiritual bridge, a prompt appeared in the system.

"This method does not conform to the mechanical principles in the host's cognition, please ...... the host carefully"

Chu Nan: "emmmmmmmm...... The bridge between heaven and earth built by spiritual power must also conform to the principles of mechanics?"