No matter which space you are in, no matter how advanced you are, the inner world is also the most precious and advanced treasure that everyone wants.

In order to get an inner world, no matter what the cost is at all.

However, there are too few congenital space worlds in this world, which few people can get from all ages.

Although, there are many great powers that can cultivate their own inner space.

However, the level of that kind of inner space is limited, and it can only develop to thousands of miles at most, and it can not generate the sun, moon and stars, rivers, lakes and seas, and the rules of heaven and earth to become a real world.

Zheng Yuan's fortune is not so good.

Zheng Yuan strolled around the chaos tree species, and then said, "chaos seed, don't worry, I will let you grow up as soon as possible."

Although he knew that it was not an ordinary difficulty to develop the current space of only 10 meters into an infinite real inner world, he did not shrink back.

He has confidence in himself and believes that as long as he persists, the inner world will be improved one day.

The space in chaos vibrated slightly, and seemed a little excited.

Just at this time, the chaotic interface in the sky suddenly shot down a golden light, which suddenly shot into Zheng Yuan's brain.

"Chaos Tianjue, born in chaos, excels in Hongmeng, dominates the universe, dominates the world."

Suddenly, a voice full of mulberry breath rang in Zheng Yuan's ear.

Then, a very magical skill naturally appeared in Zheng Yuan's mind.

Zheng Yuan sat on the ground with his knees crossed, then closed his eyes and digested.

About an hour later, Zheng Yuan opened his eyes again and exclaimed, "I can't imagine that there is such a magical skill as chaos Tianjue in this world."

It turns out that the cultivation of chaos Tianjue is not a single cultivation method, but has the ability to strengthen anything.

For example, what Zheng Yuan practiced before was hell formula. With the integration and strengthening of chaotic heaven formula, he changed into a more perfect and more powerful chaotic hell heaven formula, which can cultivate the most powerful Qi between heaven and earth - chaotic Qi.

For another example, the sky array mastered by Zheng Yuan will become a more powerful chaotic sky array with the integration and enhancement of chaotic sky formula.

The alchemy mastered by Zheng Yuan was also strengthened as chaotic alchemy, becoming the most advanced alchemy between heaven and earth.

Of course, not all kinds of skills and unique skills can be enhanced by the integration of chaotic Tianjue.

The prerequisite is that the skills and unique skills must not be weak.

After all, chaos Tianjue, as an innate skill, also has a little spirituality and arrogance.

Chaos Tianjue is divided into three stages.

The first stage is the primary strengthening stage, which is completely controlled by chaos Tianjue.

The second stage is the self strengthening stage. The initiative is in Zheng Yuan's hands. He can strengthen whatever he wants. By then, not only his unique skills but also his weapons can be strengthened.

The third stage is the supreme strengthening stage.

As long as you have a look at the opponent's skills, unique moves and weapons, you can strengthen them for your own use.

After that, Zheng Yuan's array and alchemy improved a lot.

Now he doesn't need to build a foundation, he can arrange level 4 array and refine level 4 elixir.

In other words, he has officially become a level 4 mage and a level 4 alchemist.

Zheng Yuan then murmured to himself: "I thought hell formula was strong enough, but now compared with chaotic hell formula, it's just a comparison between the stream and the sea."

The heaven formula of chaos hell was strengthened from the heaven formula of hell, so Zheng Yuan didn't need to abandon his cultivation to cultivate again.

He can transform the Qi cultivated before into chaos Qi at any time.

Zheng Yuan's idea came out of the inner space of chaos seed.

However, he still did not leave the coffin immediately.

Because he found that there was plenty of aura in the coffin.

So he's going to stay here and build a foundation.

His cultivation has already taken over the peak of the Ninth level of Qi training period. If he practices again, he can build a foundation.

Zheng Yuan no longer hesitated and began to practice.

Soon, all the aura in the whole cave converged above the coffin, forming a vortex of aura, and then poured into the coffin.Although Zheng Yuan stayed in the coffin, he was very clear about the formation of aura vortex.

He couldn't help but be surprised and happy.

Generally speaking, it is impossible for those who are practicing Qi, even those who are building a foundation to form a spiritual vortex.

In order to form the aura vortex, there must be a prerequisite, that is to have a strong ability to absorb aura.

Generally, only those who are above the golden elixir have such a great ability to absorb aura.

Fortunately, no one is here now. Otherwise, if you see Zheng Yuan, who is in the period of practicing Qi, can also make a vortex of aura, you will guess what powerful skills he has, and then you will chase him crazily.

Zheng Yuan knew that the reason why he was able to form the aura vortex during the Qi training period was due to the chaotic hell formula.

He was a little excited and exclaimed: "the hell formula strengthened by chaos Tianjue is really fierce."

Zheng Yuan is now at the critical moment of cultivation, so he doesn't think much about it any more. He picks up his mood and continues to practice hard.

Under Zheng Yuan's continuous efforts, the aura in the aura vortex kept pouring into his body like a tide.

It only took him three hours to reach the peak of the ninth floor of Qi training period.

Zheng Yuan couldn't help but get a little excited again.

He didn't expect that he could practice so fast.

It should be noted that although he is not far from the peak before, it will take him at least ten years to reach it.

However, he could finish the practice in a few hours.

Without a break, Zheng Yuan continued to build a solid foundation.

The key to building foundation is to turn true Qi into a more solid true yuan.

This is a very complicated and difficult process.

And it takes a lot of real yuan to build Xianji.

The vast majority of people are either unable to completely transform Qi into yuan, or unable to practice enough yuan.

This is also the reason why there are so many people in Qi training period who can't build a foundation.

Zheng Yuan constantly used his skills to condense the true Qi into the true yuan.

It took him only one day to transform all the Qi in his body into the true yuan.

His current transformation rate is abnormal.

If you are an ordinary monk in Qi training period, you can't transform the true Qi in your body into the true yuan without more than ten years.

It takes at least a month to be a genie.