Chu Han sat cross-legged, opening his whole body without an inch of pores, and comprehending the changes from the thunderclouds with all his heart.

WhewW......

Suddenly, the wind howled, and thunder and lightning grew.

The aura in the sky became silent, and a glow of light shuttled through the thunderclouds, and a strong thunderous sound erupted between the convolutions, and the air pressure changed accordingly.

"This is the time!"

Chu Han's heart moved, he gathered all his breath, and carefully felt the changes in the thunderclouds, and the condensed aura qi masses underwent complex and mysterious changes.

Rumble!!!

Above the thunderclouds, the momentum is in vain.

Chu Han happened to be above the thundercloud, and he felt it extremely obviously, and the powerful aura was flooded with extreme yang qi, shrouding the top of the thundercloud, shuttling and rolling, ready to go.

呲呲呲......

At the same time, the extremely mysterious aura sank below the thunderclouds, pulling each other together, and the momentum was violent.

"This ......"

Chu Han took a deep breath, this was something he hadn't noticed before, he had cultivated countless times in the thunderclouds, but above the thunderclouds, savoring the formation of thunder and lightning, not participating, not absorbing, this was the first time.

This time, he saw a landscape that he hadn't noticed in his previous life.

Rumble ......

At this moment, the thundercloud clouds rolled, and the aura of the opposite nature at the upper and lower ends of the thundercloud suddenly changed, and a brilliant thunderbolt slammed down!

"What a complicated change!"

Chu Han was amazed in his heart, he had never paid attention to the birth of thunder and lightning before, every time he came to the thundercloud, he was just simply and rudely absorbing the power of heavenly thunder, and now feeling such a scene, he suddenly felt that all the changes were so complicated and mysterious!

Chu Han suddenly opened his eyes and looked at the surging thunder light of the electric snake below.

This thundercloud was formed naturally, not artificially, and the lightning flashed away, and there was no next one, but it allowed Chu Han to carefully comprehend all this at close range.

"The power of heavenly thunder is not the power of heavenly thunder at the beginning, the surge between the thunderclouds creates a great momentum for thunder and lightning, and then the heavenly thunder is generated!"

"The power of the thunder is directly related to the momentum created by the thundercloud!"

"No wonder the Ancient Thunder Body wants to absorb the Heavenly Thunder during the Tribulation as much as possible!"

"No wonder the thicker the thunderclouds of the Thunderstorm, the stronger the thunder and lightning!"

Chu Han's eyes shone brightly, and he gradually understood some of the principles.

It's like a glass of wine.

In the past, Chu Han went directly to the wine cellar to get the brewed mellow wine and used it to replace the water in the cup, but now, Chu Han has to go through a series of complicated processes to make wine by himself!

"I'm going to go into the clouds and have a look!"

Chu Han's figure flashed, and he directly entered the thunderclouds, and the surrounding lightning surged, vast and terrifying, and the dense dark clouds contained extremely strong coercion.

In the past, every time Chu Han entered the thunderclouds, he was absorbing the power of heavenly thunder, and he didn't pay attention to too many details.

This time, Chu Han was like a spectator, feeling the momentum in the thunderclouds, the churning and collision of the aura.

Little by little, time passed.

Gradually, the momentum between the thunderclouds slowly decreased, and finally it returned to nothingness, and then the clouds saw the sun, and the heavens and the earth returned to calm.

"I kind of get it!"

Chu Han's figure flashed, disappeared, turned into a streamer, and landed in the nearest valley.

Airplanes......

Chu Han casually arranged the Heaven and Earth Prison Cage, separated himself, sat cross-legged, and immersed himself in a state of cultivation.

呲呲呲......

WhewW......

On the surface of Chu Han's body, sometimes the lightning shines, sometimes the flames soar into the sky, and the spiritual power is constantly changing.

Chu Han carefully operated the Ancient Thunder Technique, every running route was being scrutinized repeatedly, and every change in spiritual power was seriously considered.

Creating a high-level exercise is to transform the spiritual power in the body into a stronger nature, and in the stage of study and exploration, aimless study is an extremely complex and mysterious process.

However, Chu Han was different, he had a ready-made goal, and the power of Lei Yan in his body was the ultimate form to be transformed into spiritual power.

The aura that Chu Han inhaled into his body, after running Zhou Tian, would turn into a scorching Burning Sky Flame, which was a change in nature brought about by the Red Blood Zhu Fruit.

Cultivating the Ancient Thunder Technique, you can turn the Burning Sky Flame into a Thunder Flame, but there is no way to turn it into a pure Thunder Flame power.

"There must be a way!"

Chu Han's heart was extremely calm, and he completely entered an ethereal state, and the thunder flames of thunder and fire were surging and flowing in his body, as if his body was a natural Dan furnace.

The brilliance on Chu Han's body burst out, the flames burned all over his body, and the aura on his body changed little by little.

Time passes......

Half a year has passed......

Chu Han still maintained a cross-legged posture, his whole body was shining with majestic electric light, and the surrounding thick aura was constantly being sucked into his body, and the thunder spiritual power with the nature of the Burning Sky Flame was getting closer and closer to the power of the Heavenly Thunder.

Rumble!!!

However, at this moment, Chu Han's body shook suddenly, and the terrifying thunder and lightning light suddenly spread out.

In an instant, Chu Han's body glowed with infinite lightning, as if he was in a sea of thunder and lightning.

"Failed!"

Chu Han's eyes opened suddenly, and two astonishing brilliant electric lights burst out, and his whole body soared into the sky.

"Definitely this meridian!"

Chu Han's face was solemn, his heart was indifferent, there was no anxiety, changing the exercises was not an overnight effort, failure was a normal thing, as long as he went in the right direction, he was always making progress and getting better.

"What's the problem?"

Chu Han condensed his eyebrows and pondered, in the past half a year, he had modified the seven meridians of the Ancient Thunder Technique, and the thunder spiritual power that was born was infinitely close to the power of the Heavenly Thunder, and everything that the exercise modified was only the last meridian.

If this meridian was successfully modified, Chu Han would almost be sure that the Ancient Thunder Technique would be completely perfected, and he could directly transform his spiritual power into the power of Heavenly Thunder through cultivation.

However, if this meridian fails to be modified, then the remaining seven meridians will be meaningless, and it is not as good as the original primeval thunder technique to steadily turn the thunder spiritual power.

"Why is this happening?"

Chu Han carefully smoothed out his thoughts, and found that there was no problem with his thoughts, this meridian was the last door to open the treasure house, as long as he found the key to open this door, the Ancient Thunder Trick would get a qualitative leap!

"Come again!"

Chu Han's eyes were resolute, and he re-activated his spiritual power, and the spiritual power around his body followed the modified Ancient Thunder Technique, and once again came to the meridian that had not been conquered.

This time, Chu Han calmed down, carefully felt the changes during the flow of spiritual power, and once again confirmed that there was no problem, everything was ready, and only this one meridian was needed to succeed.

Rumble!!!

When the spiritual power was running to this meridian, it exploded out of control again, and Chu Han's body trembled suddenly, spurting out a mouthful of blood.

"I see!"

At this moment, Chu Han suddenly realized, the blood in his whole body surged, and the power of vitality repaired the shock in his body.

(End of chapter)