A trace of vitality poured into the soul mark from the center of Lin's eyebrows, causing the mark to emit a faint light.

Whoosh –

The next moment, Lin Yuan only felt that the world in front of him was spinning, but this feeling of dizziness did not last long, and an unfamiliar space appeared in front of his eyes.

It's a gray space, with no furnishings in it, and it looks very empty.

"Is this the soul space?" Lin Wei looked at the somewhat strange environment around him curiously, but he didn't show any panic, obviously knowing about it.

Here, it should be the soul space contained in the soul imprint.

The reason why the soul imprint can accelerate the efficiency of a martial artist's cultivation of martial arts is because it contains this kind of soul space, which can absorb the consciousness of a martial artist into it and watch the cultivation process of the senior martial artist.

Lin Zhen looked at the middle of the space, where there was a tall man, and in front of the man, there were several iron pillars one person high.

Obviously, this is the predecessor who left his mark.

Lin Derivation's eyes stared at the big man without blinking, this soul mark was less than once, he had to firmly seize every opportunity.

Under Lin Yuan's focused gaze, I saw the big man slowly raise his hands and lean back slightly, while his feet were slightly separated to stabilize the lower plate.

"Hah!"

The big man roared like thunder, his upper body bounced up like a bowstring stretched to the extreme, and his fists slammed forward.

At that moment, there was a clear sound of bones colliding from Dahan's waist.

His hands were like hammers, and he slammed into the stone pillar in front of him like lightning.

Rumble!

With a loud bang, the stone pillar that was tall enough to be human was directly split under this punch!

"Hiss......"

Lin Cheng looked at the power of this punch and gasped.

One punch smashed such a thick stone pillar, this person's fist is an iron fist.

But this is only on the surface, after watching the martial art of "Shenlong Tail Swing", Lin Cheng knew that this man used to break the stone pillar was not actually fist power, but waist power!

Lin Derivation just heard it very clearly, the sound of bones colliding and muscles stretching from the big man's waist profoundly illustrated how strong his waist strength was!

"I really don't know, what kind of strength this senior has reached, and how has his brawn been trained?"

The thicker the membrane, the stronger the waist strength of a person.

In the mortal world, brawn strength also refers to strength and physical strength, which also fully illustrates the importance of brawn to a person's strength.

The core of the "Dragon Tail Swing" is to constantly temper the waist with vitality and specific movements, so that it becomes more powerful, so that it bursts out with more powerful power.

Of course, it is useless to have a strong waist force alone, without strong physical support, after all, the effect of force is mutual, if the physical body is too fragile, a punch, whether the other party is killed or your hand is broken, it's really hard to say.

At this time, you need another boxing method in "Forging Body and Easy Tendon Technique", "Inducing Qi Chong Boxing", which is an excellent way to exercise your body.

When you practice to perfection, you can sharpen the flesh and blood of your fists with great toughness, and the sound of bone collision is like a violent roar of gold and iron colliding!

However, Lin Derivation is not so ambitious, so he should cultivate this "Divine Dragon Tail Swing" first.

Tsai carefully watched the man's trick of punching and breaking the boulder a few times, and then followed the drill, until he confirmed that he had memorized the movements of this move, and Lin Cheng withdrew from the soul space.

"I'll have to save it."

After regaining consciousness, Lin Cheng first looked at the familiar environment around him, and then looked at the exercise book in his hand, and the soul mark on it was obviously dimmed.

Obviously, there is also a limit to the number of times the soul mark can be used, and judging from this weakening range, this book may be able to read it about seven or eight times.

But it should be enough......

Lin Yuan shook his head and dragged out a two-foot-square black stone from under the bed.

This is black iron rock, a rock of extreme hardness, which Lin Cheng has only been able to get back from looking around the training ground for a long time a few months ago.

Tonight, it is the "target" derived from Lin.

Looking at the black stone bigger than his buttocks, and then at his palms, Lin Cheng gritted his teeth.

Everyone else is an egg hitting a stone, how did he become a hand smashing a stone?

But now that these are extraordinary times, we can only practice the Fa very much!

Taking a deep breath, Lin Wei walked decently as in the book and in the soul space, leaned back slightly, let out a low shout, and struck hard!

Bang!

There was a low sound, two feet square, and the black iron rock weighing thousands of catties was directly shook, and it rubbed the ground and wiped backwards a little.

"Huh?"

Looking at this scene, Lin Wei was stunned for a moment, and looked at his fist with some astonishment, as well as the black iron rock that slipped back.

"My power ......"

Lin Cheng looked at his hands with some doubts, because it was his first training, he didn't make much use of his waist strength, and the power of that punch only relied on the strength of his arm.

However, it was such a punch that actually repelled such a large piece of black iron rock?

You know, black iron rock is not an ordinary rock, the density is extremely high, in terms of weight, it is much heavier than the same volume of steel, such a large piece of black iron rock, at least one or two thousand pounds of weight, if you let the mortal man in the prime of life to push, at least seven or eight people can barely push.

Lin Shengfu really spent a lot of effort to get it back at that time, so he rolled back little by little.

But now, he was able to knock it off with one punch?

Lin Derivation didn't think it was because his cultivation had gone from the fourth level of the forging body to the fifth level of the forging body, after all, it was just a small realm improvement, and how much strength could he add?

And...... After feeling it carefully, not only the strength, but his body also seemed to have become much lighter today, but he didn't pay much attention to it before.

His body seemed to be strengthened by something.

"Could it be...... Spirit beads again? ”

Lin Yuan's eyes flashed, and he vaguely remembered that when the blue light emitted by the spirit bead rushed into his body yesterday and raged, it had made him vomit blood, and the blood that spit out was black.

Lin Zhi had read Qingyu's medical book and knew that the black blood was mostly the bruise in his body, which was full of impurities.

In the medical way, it pays attention to ventilation and blood, and thinning the meridians, and what Lingzhu did to him yesterday may be this set.

"Brother, you're so sweet."

Thinking about these clearly, Lin Zhi gave a thumbs up to the spirit bead in his lower abdomen, the election is imminent, and every point of improvement is particularly important.

Secretly happy for a while, Lin Yuan quickly retracted his thoughts and reconsidered his "dragon tail".

Although his strength has greatly improved, however, what he used in the punch just now was the strength of his arms, the so-called waist strength, and he did not exert much.

This can only be said that he has not mastered the essence of this "dragon tail swing", and his waist strength is not enough.

How does this work?

Looking at his somewhat reddened fist, Lin Cheng didn't hesitate too much, took a pose again, and smashed it down with one punch, making a continuous sound.

Bang!

Bang!

Bang!

This night, there was a low thudding sound in Lin Zhen's house until the second half of the night.

"Whew...... No more...... I'm running out of stamina. ”

At some point, Lin Cheng stopped, he looked at his already blue and purple fist, and cursed secretly.

To carry out this kind of high-intensity training, you naturally need to have enough vitality supply, so that you can rush to every corner of your body with vitality during each training process and complete the quenching.

And this kind of "vitality supply" mainly comes from the elixir, which is why it is difficult for martial artists to come out, after all, where can ordinary people afford this precious elixir?

And Lin has spirit beads, which can independently absorb the vitality of heaven and earth and strengthen the refining progress.

However, the efficiency of the spirit bead is limited, and under this kind of high-intensity training, the speed at which the spirit bead simply exhales the vitality of heaven and earth is obviously not enough.

In fact, Lin Derivation was able to persist until this time, mainly because he had stolen a lot of medicinal materials in the medical hall in advance, and these medicinal materials were absorbed by the spirit beads and turned into the purest medicinal power, repeatedly rubbing every corner of Lin Derivation's body.

With the help of the spirit bead, as long as it is an external force, Lin Derivation can be refined at an extremely fast speed.

But after all, those medicinal materials were just mortal things, and by this time, they were almost exhausted.

Bang! Bang! Bang!

Lin Cheng punched out until his physical strength was overdrawn and his consciousness was confused, and gradually, he felt that the pain in his hands seemed to be slowly weakening, and everything around him began to become a little blurred.

Sweat rained down, and his fists were stained with blood.

But he still punched out, as if there was only himself and the stone in front of him in his world.

This is a very strange state, in this state, Lin Yuan seems to be able to perceive the changes in his body and the amplitude of his leaning back more clearly.

Leaning back again, Lin Derivation felt that he had really reached the limit, he tried his best, but he could only slow down the speed of his fall a few points, and in the strange state, he could even feel the change in the degree of bending of his keel.

But at this moment, on the spirit bead, there was a flash of brilliance.

A mysterious power poured into Lin Derivation's body, making his consciousness suddenly clear!

"Uh...... Yes! ”

With a loud roar, Lin Yuan's upper body bounced up like a tumbler, and he tried his best to blast out with both fists!

Cha!

The fists fell, and on the black iron rock, several cracks came out, winding half a foot.

This punch finally caused damage to this black iron rock!

Lin Zhen looked at these cracks, and his almost dilated pupils suddenly returned to focus.

This...... I guess I succeeded in using my waist strength......

At the same time, in the next room, Qingyu, who was sitting cross-legged on the bed, also opened his eyes, glanced at the wall, and nodded slightly:

"Yes, it's finally a little presentable."

Dragging the last bit of strength, Lin Yuan turned over and got on the bed, slumping on the bed in a large shape.

"Medicinal power...... It's really gone......"

Lin Yuan looked at his hands weakly, there was already blood on them, and there were almost bones on them!

And the food he had eaten before, along with those herbs, was really not left at all.

However, the effect of this night's cultivation is still very good.

Lin Wei touched his waist, and he could feel that after a night of training, his waist was faintly burning as if it was being roasted by fire.

That's a sign that the waist has been tempered.

This also shows that his training this night is at least effective.