Seven days later, inside the cave.

Swish!

Lin Chen stood up from the hot spring, snapped his fingers casually, removed the remaining water droplets on his body, and stood in front of a huge floor-to-ceiling mirror.

He has a good figure, with pectorals, abs, mermaid line, etc.

This is the result of his deliberate workout, after all, his well-proportioned body can increase his agility and flexibility, and he will have an advantage in combat.

"Let's get started!" Lin Chen took a deep breath, the spirit silk in his hand surged, and a large amount of spirit ink flew up, inscribed one rune after another on his body.

He then walked naked to a laboratory.

The prohibitions that shimmered with the aura of the formation, the brilliant spirit beads arranged in the direction of the Bagua array, the incense burner that exuded a curling fragrance, and the medium-grade spirit stones that exuded milky white light were quite bizarre.

This is the foundation building secret method created by Lin Chen - the foundation building and transformation secret instrument.

Airplanes!

Lin Chen was lying on the stage, and because he was not wearing clothes, he couldn't help but feel a chill.

"Whew-"

He exhaled lightly, relaxed, and began to slowly activate the formation.

At this critical moment, the thoughts in Lin Chen's mind were a little distant.

After all these years of research, I can be sure that the activity of the aura distinguishes the immortals. ’

'The active aura is ever-changing, and can be temporarily transformed into all things in the world due to the influence of various powerful factors, and it is with this characteristic that the monk has extraordinary abilities. ’

And the aura of dead silence is not unchanging, but it is affected by what has been transformed. For example, the human body can have fire, but it cannot be converted into flames. ’

In between, there should be a tipping point at which the dead aura will no longer react with the active aura. ’

Just like where the spiritual energy is abundant, the land is not all spiritual land, but some of the same mortals have spiritual roots, and some do not. ’

And the reason why monks cultivate immortals is because they have spiritual roots. And only active aura can affect each other, so the spiritual root refers to the part of the active aura in the human body? ’

Between his thoughts, the aura of heaven and earth around him seemed to be attracted by some kind of attraction, and he kept coming to the laboratory, gradually becoming rich, forming a whirlpool......

'It's started...... Lin Chen quickly came back to his senses and concentrated on what was in front of him.

I don't know how long it took.

A large amount of heaven and earth aura turned into a small storm in the laboratory, constantly pouring into Lin Chen's body from all around.

Pain! Pain!

Drops of blood oozed from the surface of his body, and the intense pain made him snort even with Lin Chen's mind.

This is the first level of foundation building, qi and blood!

A large amount of heaven and earth aura is infused into the monk's body, and once the body can't support it, the foundation will fail!

Therefore, those with aging qi and blood and mutilated limbs will face more dangers at this level, and failure may be greater!

'It's time. Lin Chen thought silently in his heart, and then his true qi gushed out, activating the prepared means.

Rumble!

Suddenly, the spirit beads that had been arranged in the eight directions around emitted a huge suction force, forming one anticyclone after another, forcibly weakening the spiritual energy vortex formed on Lin Chen's body.

Lin Chen only felt that his body was light, and the huge spiritual pressure around him began to drop rapidly, and the tearing sensation felt by his flesh quickly disappeared.

"Lead!"

With Lin Chen's soft drink, the aura escaping from his body continued to pour into his body under the traction of the runes on his body.

The total amount of spiritual energy in the body was constantly rising, and under the control of Lin Chen's true qi, a huge spiritual pressure was formed, constantly compressing the heaven and earth spiritual energy that came in.

But this process was very difficult, and the total amount of unrefined spiritual qi from outside had far exceeded the true qi content in his body.

Even if he tried his best to control it now, he felt that he was powerless, and the risk and difficulty of this process were like using a thin rope to hold a tiger that devoured people.

"Sure enough, the true qi content in the body is not enough, even if the foundation is forcibly built, it will die because it can't control the external heaven and earth aura explosion." Lin Chen gritted his teeth and said.

"Even if I don't plan to break through from the middle stage of Qi refining to the foundation building stage, I just want to make a leap in the aura energy level, can't I......" Thinking of this, Lin Chen used his back hand without hesitation.

The jade box that had already been placed on the side was opened, revealing the hundred-year-old chalcedony placed inside.

Under Lin Chen's control, half of the hundred-year-old chalcedony was split out, flew above him, and then directly shattered.

The chalcedony spiritual power contained in it poured into Lin Chen's body, and suddenly, the active heaven and earth aura seemed to become lazy at this moment.

The external aura that was originally violent and uncontrollable could be controlled by Lin Chen at this moment.

"Chance!" Lin Chen stepped aside.

A wisp of spiritual energy in the Zhongpin Spirit Stone on the side was forcibly taken out by the formation and flew into Lin Chen's body.

The moment it entered its body, the aura that had been scattered everywhere suddenly paused, and then frantically surged to one place, constantly compressing and condensing a little!

Rumble!

As time passed, there seemed to be a roar sounding in Lin Chen's ears.

At this moment, at Lin Chen's dantian, there was a fluctuating place, mixed with a touch of red, blue and yellow milky white liquid.

This is the liquid true element, the symbol of the monk of the foundation building period!

However, Lin Chen knew that this was the true yuan that he forcibly condensed by using various means, and his control over it was extremely poor, if he used this to build a foundation, not only would his combat power be extremely poor, but he would also leave all kinds of hidden dangers!

"But I didn't think about building a foundation here, but ......" At this moment, Lin Chen's face suddenly became solemn.

I saw him stretch out his hand again and press it the stage.

The spirit bead that was originally forming an anticyclone suddenly paused, and then the direction of the suction force was reversed, constantly sucking away the spiritual energy around Lin Chen.

The already unstable liquid true element directly collapsed without the replenishment of sufficient spiritual energy, forming a large area of spiritual mist mixed with red, blue and yellow, and it was quickly turning into a violent spiritual aura, destroying Lin Chen's body!

Reverse the liquid true element of the foundation building period into the mist true qi!

Lin Chen hurriedly subdued the remaining hundred-year-old chalcedony to stabilize the furious aura, and then reversed the formation again, absorbing the aura, and atomizing it.

After such repeated pulling, Lin Chen finally succeeded in transforming the true qi in his body from a gaseous state to a fog state!

The foggy aura was originally a change in the process of breaking through the foundation building period, but Lin Chen stabilized it in his body through means!

"It worked!" Lin Chen's face showed a touch of joy.

This experiment is based on his research thinking.

In addition to studying cultivation, he has also been thinking.

That is, how can he surpass countless monks to compete for the immortal path of immortality.

The path of cultivation has always paid attention to the strong and the strong, and only by being the best monk of the same level in each realm can we go further on the path of immortality.

Although there are a very small number of mediocre monks who can survive to the end, being able to obtain sufficient cultivation resources under the condition of Gou is a kind of ability in itself.

Lin Chen can be sure that the scientific thinking that is different from this world is what he relies on to become an immortal.

But how to expand this advantage, and even surpass others, has never been a simple matter.

After all, in this world, there are never a few Tianjiao cultivators who have abundant cultivation resources, peerless exercises against the sky, and terrifying talents!

For example, a monk with a [Xuanshui Spirit Body] not only cultivates the method of water practice for thousands of miles, which is comparable to a Heavenly Spirit Root monk, but the true qi he cultivates also has high-level characteristics, and he is extremely sharp when fighting the method.

Another example is the method of the Qingyun Sect Zhenzong [Taiyi Longevity Formula], which not only allows the monk to store more true qi in his body, but also gives the monk the characteristics of healing and returning qi in the body, which greatly improves the endurance of joining the battle, and even increases the life span of the monk himself.

Lin Chen has no talent or background, although he can compete with him with the various tricks and spiritual techniques he has researched, but this is not the essence of strength after all.

But the last observation experiment of the aura energy level gave him an idea.

Because Lin Chen found that between the two energy levels, it is not like a ladder, but more like two different points on a line, which can be approached infinitely.

In other words, if the true qi of the Qi refining period is compared to cotton, and the true yuan of the foundation building period is compared to steel, then Lin Chen can transform the true qi of the Qi refining period into wood by means.

Converted to reality, it means that Lin Chen can forcibly disperse this unstable liquid true qi and reverse it into a mist true qi between the true yuan and the true qi.

Not only could it store more True Qi than a cyclone, but it could also allow Lin Chen to store True Qi in his body in a much higher quality and quantity than a monk who had also just broken through after breaking through the Foundation Building Period.

In the words of the Immortal Cultivation Realm, doing so can make Lin Chen's foundation even deeper!

"Not only that, but the mist true qi in my body not only far surpasses the monks of the same level in terms of storage, but also in terms of quality, it is enough to fight with the foundation building monks, so that they will not collapse with one blow......"

"Even when I fill the dantian with this mist true qi, I can directly break through, and I don't need to go through the physical body level and the true qi level."

Lin Chen smiled lightly, this experiment was a complete success, not only allowed him to obtain a true temperament and quantity far beyond the same level, but also laid a strong foundation, allowing him to go further on the road in the future!

Not only that, but now he is far beyond his peers in terms of true qi quality, reflexes, and perception, and it can be said that he is a rare opponent in the same level!

"The next thing is to continue to accumulate true qi, promote to the foundation building period as soon as possible, and explore the mysteries of the Jindan period." Lin Chen pressed his hand, and the formation began to gradually stop.

Just as he was about to get up, his body suddenly stiffened, and endless pain suddenly came to his brain!

"How...... What's the matter, hmm! Before Lin Chen could figure out what was going on, his brain suddenly hurt, and countless memories appeared in his mind!

The pain of the breakthrough, the joy of the harvest, the repetition of the experimental records, the process of studying the trick, the experience of the first battle, and the state of mind of awakening Su Hui...... Countless memories, like movie clips, replayed in his mind.

A world that radiates white light, a vast chaotic ...... At the end of the memory, there is a deep darkness that is boundless and seems to never end!

Then, he saw a little spiritual light, rising from the darkness!