He immediately came to the cultivation ground and said hello to the core disciples in charge of guidance, saying that he was going out to cultivate.

The rules of the Lei family are very strict, ordinary children in the early stage of the spirit body must cultivate in the cultivation ground, and they can only cultivate on their own after breaking through the middle stage of the spirit body, but if they go out, they must also notify the core children in charge of the day.

Xu You hasn't come to the cultivation ground these days, because he can defeat Ma Rulong, in fact, far more than the early stage of the spirit body, so the core disciples will open one eye and close one eye.

Today's core disciple is called Lei Feng, but he has the same name as a good person who was a household name before Xu You's crossing, and he didn't even ask when he heard the words, so he waved his hand and let him move freely.

Xu You was very happy, thinking that everyone who called Lei Feng seemed to be good people.

The ordinary children watched him leave enviously, thinking that this treatment was really different from the same spirit body.

Soon, Xu You came out of the Lei family, he performed the magic technique, and in less than half an hour, he had already come to a place dozens of miles outside Fenglei Town.

It's a wilderness, and there's no one but rocks and messy trees.

Xu You didn't stop, strode forward, and soon, he came to a winding river.

The river was about five or six meters wide, no more than two meters deep in the middle, and the current was gentle but quite clear.

Seeing this, Xu You nodded with satisfaction, he had already figured out how to cultivate the primary spiritual technique.

Seeing that there was no one left and right, he quickly removed his clothes, and then with a pop, jumped into the river, and plunged into the deepest part in one breath.

Posing for a jack pendant and standing firmly at the bottom of the river, Xu You held his breath and began to pinch without hesitation, casting the best spiritual technique, Ice and Fire Double Dragon.

Whew! The icy aura above his left hand bloomed, instantly freezing the river and turning it into a huge ice dragon several meters long. But the hot breath above the right hand had just gushed out, and before a spark could spark, it was drowned by the omnipresent river.

Casting fire-based spiritual magic in the water will undoubtedly be hindered by the most powerful.

Xu You urged the spiritual power again and again, constantly adjusting the spiritual arts, and changing the way of casting.

After half a ring, and after his constant trials, the flames finally gushed out, but they were very, very small, and in less than half a breath, they were submerged by the river.

Moreover, releasing flames underwater, the speed of consuming spiritual power is almost ten times that of land, and in just one meal, Xu You has not released a few sparks, and he feels a little unbearable.

But he didn't give up, but kept repeating the process just now, releasing the flames with all his might.

Little by little, time passed.

Two hours later, Xu You was already tired, and his spiritual power was consumed to the extreme, and even the jack pendant began to flutter a little underwater.

But there was a happy smile on his face.

A flame the size of an egg burned under the water, and it lasted for three breaths before it was extinguished by the cold water of the river.

Xu You jumped out of the water, walked to the shore, and pinched it casually, releasing the last bit of spiritual power, planning to try the results of these two hours of underwater cultivation.

A huge fire dragon four or five meters long appeared in an instant, bringing up an astonishing momentum, and swept violently towards a rock more than one meter high on the shore.

The boulder instantly turned black, and then exploded with a thud, and the flying stones scattered like strong bows and crossbows, hitting the river and causing a large splash.

Xu You was dumbfounded, and even when he was hit by the flying stones, he couldn't feel the hot pain.

This is a random attack? How can it feel like a dream?

It took him a long time before he reacted, and he couldn't help but be surprised and delighted.

Just using the residual spiritual power to send a blow casually, and it was not a complete Ice and Fire Twin Dragon, it was almost the same as the power of this primary spiritual technique that he had used to exert with all his might.

If you exert the Ice and Fire Twin Dragons with all your strength when you have abundant spiritual power, how much will the power increase?

Xu You didn't even dare to imagine it, clenched his fists, his heart was pounding, and all the rewards of the two hours of hard work under the water were back, it seemed that his idea was right.

Not only do you have to cultivate, but you also have to cultivate under great pressure or danger in order to grow quickly.

What if there's no pressure or danger?

It's not just stressful, it's extreme. Fire and water are incompatible, and only a mentally dead monk would do so.

But Xu You wanted to be brain-dead, and it turned out that his brain-dead behavior was correct.

If you can release a flame that can burn in the water, then on land, the flame will be more powerful than ever.

It's like being under a lot of pressure underwater, and if you can move forward normally, then when you get to land, you will be able to walk like a fly.

Grow as fast as you stress!

And when the fire dragon is cast underwater, all the rivers become enemies, and they are unavoidable, endless enemies, and they do everything possible to force Xu You to cultivate the spirit art without a single shortcoming, without a single mistake, and when it reaches perfection, the fire dragon can be released.

In just two hours, its intensity is no less than Xu You's usual three days of hard cultivation, and there are many wonderful things that cannot be experienced.

Xu You immediately sat down and began to settle into the practice of fellow practitioners to restore his spiritual power.

Half an hour later, as the spiritual power was full, Xu You stood up, popped, and jumped into the water again to cultivate eagerly.

He stood at the bottom of the water and unleashed the fire dragon repeatedly, and his technique, power, variety, skill, and speed were all difficult to improve in the obstacles of extreme environments.

The biggest difficulty in releasing the fire dragon underwater is not whether it can release the flames, but thousands of exercises, and the improvement may only be insignificant, which is easy to lose confidence.

If it weren't for Xu You's incomparably firm will, and seeing the powerful power of the fire dragon after promotion, he might not be able to persevere.

After another two hours, Xu You jumped out of the water, and his spiritual power was exhausted again.

He tested the power of the fire dragon, and there was still an unimaginable increase, although it was not as large as the first increase, but Xu Youzhi said, this is the reason why the power of the fire dragon is about to be completed.

The closer you get to perfection, the harder it is to improve.

However, Xu You was already very satisfied, if he cultivated normally on land, no matter how long it was, it would be impossible to have this effect.

The power of the fire dragon has increased, compared to the progress of the ice dragon, although the release of cold qi under the water will also be hindered by the flow of water, but nature and the extreme pressure of releasing fire cannot be compared.

How can you make the ice dragon feel the pressure of extreme environments?

Xu You thought as he regained his spiritual power.

Suddenly, he felt something in his heart, looked up, the sun was shining down, shining warmly on his body, and he couldn't help but have his eyes lit up.

He entered the river again, but not to the deepest place, but after not reaching the top of his head, he used the ice technique to freeze a wrist-sized icicle straight in the river, extending out of the water about a meter high.

Then Xu You condensed the transparent ice surface at the top of the icicle, like the surface of an umbrella.

He carefully shaped the shape of the umbrella-shaped ice, and the elementary school knowledge before the crossing came to mind, the principle of the convex lens.

Convex lenses can focus sunlight and generate a lot of heat, and the larger the mirror, the higher the temperature at which it is focused.

Soon, as the convex lens condensed by the ice took shape, the sunlight was also focused, and after a while, Xu You clearly felt that the temperature of the water around him began to rise rapidly.

Knowledge is power...... He thought with emotion, and after forming the ice convex lens, he submerged in the water and waited quietly.

With the temperature of the water in the surrounding area of several meters, it increased dramatically, and soon, it reached eighty or ninety degrees, which is already a very high temperature. Even if Xu You had reached the peak of the early stage of his spiritual body and his physical body was strong, he couldn't help but close his eyes and release his spiritual power to protect his body.

After a few moments, the surface of the water began to bubble, and with it, the water within a radius of several meters boiled and turned into boiling water.

Xu You began to cast the ice dragon, and sure enough, as soon as the cold qi was released, it was impacted by the high temperature of hundreds of degrees without a trace. It's not as difficult as releasing a flame underwater, but it's still close to extreme environments.

Although the temperature of the boiling river has risen, it is still river water, and the pressure on the fire dragon has not decreased in the slightest.

At the same time, Xu You also had to release spiritual power to protect his body to avoid being scalded by boiling water, and he also exercised the control of spiritual power, which can be described as killing three birds with one stone!

He cultivated frantically, never stopping for a breath, and devoting his body and mind to the confrontation with the extreme environment.

Two hours later, Xu You jumped out of the water again, exhausted, and collapsed directly on the shore, never wanting to get up again.

But in the extreme fatigue, there is an unusually comfortable feeling, just like the relaxation of the whole body after a lot of exercise, even if he does not use spiritual power, Xu You can feel that every cell in his body seems to be seeping out of the depths of the body, moisturizing it, and feeling hearty.

This means that his physical spirit body has also been elevated, becoming stronger and more indestructible.

After resting for half an hour, Xu You gradually regained his spiritual power. At this time, it was already dark, and before he knew it, he had been cultivating for seven or eight hours, and a whole day had passed.

If there is no sunlight, it is no longer possible to focus on the heat, and it is the rule that you must return to Lei's house before evening. Xu You had no choice but to reluctantly leave the river.

However, he was very happy in his heart, he found a new cultivation method, not only did he improve extremely quickly, but he also didn't have to worry about being discovered, which was simply amazing.

In the evening, Xu You returned to Lei's house, and his expression had already returned to calm.

Even if he is happy, he can't be happy, so people can see at a glance that this is one of the survival skills that Xu You learned in the spirit world.

After dinner, he returned to his house, took a Pure Body Pill, and began to practice the Light Gong and the Jade Qing Gong together.

There are also skills in taking pills, and Xu You asked the core disciples for advice and learned that when the cultivation reaches a bottleneck or the cultivation is smooth, it feels very good, and it can go further, taking the auxiliary pill may have an unexpected boosting effect.