Along the way to martial arts cultivation, in addition to the martial arts heart crystal, the most important thing in the divine body realm is to cultivate the divine body.

The cultivation of the divine body, if there are no other changes, is a gradual process. However, in the continuous development of martial arts, there are also some special body refining exercises, and the emergence of body refining exercises has made it possible for martial artists to have more possibilities in the cultivation of the divine body realm.

The growth of the Divine Body Realm is very slow, and the martial arts are not the main reason, but the cultivation of the Divine Body is the most fundamental reason. Persisting in cultivation can of course allow the divine body to continue to grow, but this growth is passive growth.

Continuous cultivation according to the martial arts method, the vitality is constantly refined, so that the heart has stronger vitality, produces more powerful qi and blood, and promotes the growth of the divine body, so it is a passive process.

And the vast majority of martial artists, cultivation has been trapped in the divine body realm for a long time, and the reason for this is because the strength of the divine body is insufficient, which hinders the improvement of the cultivation realm!

The function of the body refining method is to make the growth of the divine body change from passive to active, which in turn promotes the improvement of the realm.

This kind of body refining method that changes from passive to active is more precious and rare than martial arts exercises, and its cultivation method is also more dangerous.

It is conceivable that if the divine body takes the lead in growing to a certain height, and the heart cannot provide enough qi and blood to fill the growing divine body, it is hard to imagine what kind of consequences it will be!

The growth of the divine body is also divided into nine stages according to the division of the ninefold realm of the divine body realm.

"Earth Flame Body Burning Technique" is a ground-level high-level body refining technique, in the case of the scarcity of body refining exercises, it still has such a high level, you can imagine how precious it is!

To put it simply, the cultivation of this technique is to treat the cultivator as a soldier and an elixir, and to refine it with the fire of the heart of the earth, and to temper the flesh and bones of the martial artist, so as to improve the strength of the divine body!

After learning about the various circumstances of "Reverse Qiankun", Tian Yuan and Cang Lao came to a conclusion after several analyses that Tian Yu wanted to rely on this exercise to slowly strengthen his qi and blood, and then promote the growth of the divine body, it was really too difficult and too slow!

Especially in the first realm of the divine body, Tian Yu has the strength of the divine body of the sixfold realm of the divine body, so that the growth of the divine body is even more difficult!

In order to prevent Tian Yu from being trapped in the Divine Body Realm for too long, the two resolutely decided to let Tian Yu practice this body refining technique!

After a few days of getting along, Tian Yu also knew something, Tian Yuan turned out to be a five-rank great array master-level "weapon array master", and Cang Lao was a sixth-grade great array master-level "medicine array master";

And this is just the cultivation of the two of them in the path of formation, not to mention that the martial arts cultivation of the two of them has also reached the level of the supreme realm.

Specifically, it is the martial arts cultivation of the Supreme Realm, because both of them know how to hide their strength, Tian Yu can't accurately perceive it! But what is certain is that the actual combat power of the two of them is definitely stronger than that of the martial artists of the same realm!

Although the weapon array master and the medicine array master are not majoring in the method of attack, they can also improve the actual combat power, and how much they can improve is another matter!

Tianxuan Academy covers an area that is too wide, and the peaks in it are even more numerous, and there are some special peaks among them.

The "Meteorite Peak" is one of them, and its uniqueness lies in the fact that this peak is an extinct volcano, and this peak is also a peak reserved for Tian Yuan and Canglao.

As we all know, whether it is the refining of the weapon array master or the alchemy of the medicine array master, fire needs to be used, whether it is ordinary fire or fire burned by some special substances, it can be used, but the quality of fire also determines the quality of the refined things to a certain extent. And the fire in the center of the earth is already a very advanced existence.

However, if you want to use the fire of the center of the earth, you must be in certain places before you can mobilize the fire of the center of the earth for your own use. Meteorite Peak is such a place, although it is an extinct volcano, but deep in its core, there is still the existence of fire in the center of the earth!

In the cave of Meteorite Peak, Tian Yuan was in front, Tian Yu was in the center, and the old man was pressed back, and the three of them continued to move forward with the cave that meandered down, heading to the place where the fire in the center of the earth was located!

As we went deeper, the cave began to heat up, and at first it didn't feel anything, but as it got deeper and deeper, the heat hit and even the stones were baked hot!

After walking forward for three hours, the three of them suddenly appeared in the stone hall. The stone hall is circular, about 50 meters in diameter and about 10 meters high, and is a small magma lake.

The boiling fiery red magma churned, rolling up bursts of scorching air, and what was even more unique was that in the middle of the small magma lake, there was a stone platform ten meters square. When he got closer, Tian Yu discovered that this stone platform was made of a whole boulder that had not been melted by magma, and all kinds of alchemy and refining utensils were placed on the stone platform!

"It's here!" Tian Yuan said in a deep voice, put away the illuminated beads in his hand, and then looked back at Tian Yu!

And the last old man also put away the illuminated beads in his hand, stepped forward from Tian Yu's side, stood with Tian Yuan, and then looked back at Tian Yu.

"Huh!" A moment later, the two of them let out a soft sigh at the same time, and their faces were a little surprised.

This place has been more than 2,000 meters deep underground, and there is even the existence of the fire in the center of the earth, the environment here is already extremely hot, and the two of them can stay here for a long time with their advanced cultivation! They looked back at Tian Yu, and they also wanted to see how long he could last in such an environment.

In their minds, Tianyu should not be comfortable here, relying on his perverted god body to hold on. But this look is much beyond the expectations of the two, at this moment, Tian Yu's face is not red and his heart is not beating, and his expression is also lonely, looking at his expression, it is obviously more relaxed than the two.

How did they know that in Tianyu's body, there was still the existence of the "Pure World Heavenly Flame", which was the essence of fire that was a few points stronger than the fire in the center of the earth, and with its existence, such an environment was really trivial to him!

Because there were too many things involved in the Pure World Tianyan, Tian Yu did not tell the second elder, and at this moment, the second elder looked at Tian Yu, and he could only attribute it to the reason for the Tian Yu Divine Body.

Thinking about it this way, the two of them felt that it was even more necessary for Tian Yu to cultivate the "Earth Flame Body Burning Technique".

"Over!" Tian Yuan retracted his gaze, said in his mouth, jumped over the small magma lake, and landed on the stone platform in the center, and the old man and Tian Yu also came to the stone platform one after another.

"Tian Yu, are you ready?" Tian Yuan asked.

Tian Yu took a deep breath and said firmly: "Master, the disciple is ready!"

Tian Yuan nodded, and then said to the old man, "Then, let's start!"

The old man didn't talk nonsense, with a wave of his big hand, he took out a big tripod from the storage ring, and landed on the stone platform with a bang.

Dading is pitch black all over, into a column, the whole body is engraved with gluttonous patterns and cloud patterns, nearly two meters high, more than one meter in diameter, it is a Dan furnace!

"This thing is called 'Earth Flame Furnace', Xuan-level high-grade quality, it is an alchemy furnace dedicated to medicine array masters!"

"Xuan Rank is advanced, with my cultivation in the Instrument Array Master, I am only a Five-Rank Great Array Master, and I want to cast such a treasure...... It's unattainable!" Tian Yuan said with both envy and sigh!

A Formation Division-level Weapon Formation Division can only refine Yellow-Rank Soldiers, and a Great Formation Division-level Weapon Formation Division can only refine Xuan-Rank Soldiers! With Tian Yuan's Weapon Formation Division level, it is impossible to refine Xuan-Rank high-quality soldiers!

"Huh...... How difficult it is to cast the Dan furnace, not to mention that there are no materials, let alone drawings!" He was so old that he didn't feel a pity, but his face was still relieved, this Dan furnace was obtained by accident in an ancient ruin, and he was very satisfied with it!

"That's it, what do you want to do, let's start!" Tian Yuan shook his head and said without thinking about it anymore.

The old man pinched the magic trick with both hands, and the formation bases the size of light spots fell down casually, and began to arrange the formation.

The speed at which the old man arranged the formation was too fast, although Tian Yu watched it intently, he could only look at it approximately, just the first formation, and there were more than a thousand formation bases!

In ten breaths, a crystalline white formation condensed to only one meter square was generated under the Earth Flame Furnace, and before the formation was opened, the fiery waves of qi began to move towards the formation, and not only that, but even the tumbling magma began to converge towards the stone platform.

What kind of formation is this, which can cause such a change before it is opened?

"Fire Array, Fall!" After the formation was arranged, the old man let out a low sigh, pressed his hands, and the crystal white formation was directly integrated into the stone platform, waiting to be opened and show its power!

The old man didn't stop for a moment, the formation base in his hand played again, and began to arrange the next formation, this time it was even more terrifying, just this one formation, nearly 4,000 formation bases were used!

"Gathering Fire Array, Condensation!" Old Man drank again, a formation about the size of the Ignition Array, condensed directly on the stone platform below the Earth Flame Furnace!

After arranging the two formations, the old man faintly sweated on his forehead, with his six-rank great array master's formation cultivation, the array base that could be built was more than six thousand, but he built more than five thousand formation bases at one time, and arranged the formation, this kind of consumption was a little unbearable!

If it weren't for the fact that this time was so important, and only success and failure were allowed, how could the old man consume so much spiritual consciousness at one time?

The old man is not doing anything, and his spiritual sense is no longer enough to arrange the next formation!

Tian Yuan made a move, he was even more terrifying, he only arranged one formation, but the formation base used was more than four thousand!

"Condensing Fire Array, rise!" Tian Yuan let out a low shout, and more than 4,000 formation bases moved one after another, and they flew and fell according to the rules, directly sending the Condensing Fire Array into the Dan Furnace through the gluttonous mouth on the Earth Flame Furnace!

The old man started again and put many elixirs into the Dan furnace.

Tian Yu looked at it secretly, there were nearly a hundred kinds of elixir, not to mention, and the grades ranged from first-grade elixir to sixth-grade elixir!

After the elixir was released, the old man looked at Tianyu with his eyes and shouted, "Tianyu boy, go in!"

"Your sister...... This...... This is to refine the master as an elixir!" Tianyu is a clever man, and he even thinks of the "splashing monkey" in his mind!

"That's it, that monkey can do it, the master is still afraid of you bird!" cheered himself up, Tian Yu quickly took off the two rings in his arms, as well as the fist gloves on the demon arm, and then gritted his teeth and jumped into the Dan furnace!

"Bang!" The lid of the furnace fell, completely locking Tianyu in the Dan furnace, and his eyes went dark, and he suddenly fell into darkness!

Everything was ready, Elder Cang and Tian Yuan glanced at each other, their spiritual sense turned, and the formation opened!

"Ignite the fire, open the ...... Gather the fire, open!"

Rumble...... Rumble......

The magma in the lake, with the opening of the fire array, suddenly boiled, the magma tumbled and flowed to the stone platform, and the magma in the depths of the lake rolled and gathered!

The Gathering Fire Array let out an explosion, and fiery red flames burst out from the stone platform, completely enveloping the entire Earth Flame Furnace in flames!

"Condensing Fire Array, open!" Tian Yuan let out a low shout, the Condensing Fire Array opened, and in an instant, the endless flames were directly absorbed by the Dan Furnace!

"Ah...... Two old perverts, fucking ...... Treat the master as a barbecue, you wait for the master, ah......"

Tianyu's roar came out through the Dan furnace, what kind of pain did he endure?