According to Huang Qing, the universe refers to matter and space-time, and the universe is a generalization of the vast space and the various celestial bodies and diffuse matter that exist in it.

Jiu Ni looked confused, talking about the universe, why did he talk about time, space, and matter, this is beyond his cognition!

Indeed, Jiu Ni is only a sixteen-year-old boy, with his knowledge and experience, how can he know time, space, and matter, although he has stepped into the martial arts, but his understanding and cognition of the world of monks is still in a blank paper, and there may be a little bit of something on the white paper, all about his cultivation!

Looking at the nine Nirvanas who were already confused, his deflated appearance, Huang Qing suddenly felt a sense of pride in his heart, he thought that this kid knew everything, and there might as well be things he didn't know, now, Huang Qing's heart was balanced a lot, but he still planned to tell Tu Jiu Nirvana what he knew, and Jiu Nirvana cultivated to improve, and he naturally followed suit!

"Everything in the universe will have a certain degree of relativity, such as: day and night, male and female, water and fire, advance and retreat, this relative thing corresponds to the way of yin and yang. ”

"And the correspondence between time, space, and matter is the same, the universe is mainly composed of time, space, matter, three elements, and the Tao of Yin and Yang is closely related, with time, space, and matter, the universe therefore Yin and Yang reach a balance, and all things in the world can multiply!" Huang Qing looked at the bewildered Jiu Ni and said.

"And Yin and Yang is a kind of mysterious Dao, not something that ordinary people can comprehend, however, you sword cultivation should comprehend the Yin and Yang Dao meaning, if you can't understand the Yin and Yang Dao meaning, the sword cultivation and sword Dao cultivation will definitely stagnate!" Huang Qing continued.

"So what should I do?" asked Jiu Ni.

"Since you want to cultivate the Cosmic Sword Technique, you should first cultivate the two supreme paths of time and space, you must cultivate both at the same time, so as to balance your sword path, and this path is destined to be difficult to walk, and it is also destined to be extraordinary, how to choose, you think for yourself!" Huang Qing responded.

"If you want to do it, you must do the best, and the path you take should be different, otherwise how can you become a strong person!" said Jiu Ni firmly.

Of course, as long as you pay, as long as you persevere, who knows what the future will be!"

"Also, the essence of the Dao is unchanging, all the ways are clear, if you can reach this level, you can transform any Dao in the universe into each other!" Huang Qing added, and Jiu Ni nodded.

Then, Jiu Ni was completely immersed in his own world, and muttered, "But how can I cultivate the two supreme paths?"

Seeing that Jiu Ni was in deep thought, Huang Qing flipped through the book on the side with interest.

"By the way, books, aren't there many books in the space inside the World Tree, there must be books in them that record the way of time and space!"

However, Huang Qing, who was concentrating on eating books, was frightened by Jiu Ni, he glanced at Jiu Ni lightly, and did not speak, this madman, this is the second time, when he thinks of any excitement, he will jump with joy, and he will have to get used to him in the future.

Immediately, Jiu Ni kept flipping through the books to find them, and the neatly arranged books had been turned over to the entire underground, Huang Qing really couldn't stand it, but he still didn't stop him, he is a madman now, don't be unhappy with a madman!

"That's you!" Jiu Ni said, and Huang Qing also glanced at the book in his hand, he should have found the book he needed.

The Codex of Time and Space!

The book that Jiu Ni found was the "Code of Time and Space", which recorded in detail the way of time and space, and the two are also called time and space.

Huang Qing naturally saw this scene, and he suddenly felt that this guy was a little brazen.

Huang Qing's thoughts, Jiu Ni naturally didn't know, his mind was already immersed in the "Time and Space Codex".

Time and space are two abstract things, they exist with each other, and they cannot be seen or felt like matter, and they exist in cognition, but they do not exist without existence!

Time can change the material form of all existence, and space is the place where all material forms exist. And time, space and matter are closely related, if there is no matter, how can we talk about time and space!

"The power of time and space!"

"Time can change the form of all matter, that is to say, time can destroy all life force, this is the power of time. ”

In other words, space can destroy the form of matter, or destroy all life force, and this is the power of space. ”

"It turns out that this is the power of time and space, and the power of time and the power of space can destroy the lives of all things in the world!"

Jiu Ni has already understood what the power of time and space is, the power of time and space is recorded in the "Code of Time and Space", the power of time and space is the threshold to enter time and space, only by understanding the attributes of the two, can you have a chance to get started!

Then, Jiu Ni carried the Chiyuan Sword, flew out of the space in the World Tree, came to the World Tree, activated part of the surface inscription of the Chiyuan Sword, and kept waving it, I don't know how many times I swung the Chiyuan Sword, Jiu Ni couldn't bear it, and a white shirt was already soaked in sweat!

There are eighty-one inscriptions on the surface of the Chiyuan Sword, and Jiu Ni can only barely activate the three inscriptions on the surface of the Chiyuan Sword, and the Chiyuan Sword itself is not made of mortal iron, and it weighs four hundred and eighty-six catties by itself, and each time one inscription is activated, the weight of one hundred catties is increased.

However, the internal inscriptions of the Chiyuan Sword were completely damaged, according to Huang Qing, when the Chiyuan Sword was intact, it should have more than 129,600 inscriptions, but a vessel with more than 129,600 inscriptions could no longer be measured by how many inscriptions!

After Jiu Ni was tired, he sat under the World Tree and closed his eyes to adjust, but he didn't know what he was thinking!

......

"Time is beside me every moment, every moment is passing, space, I am standing in the world of picture scrolls, and the world of picture scrolls is a space ......" Jiu Ni kept chanting.

Immediately, Jiu Ni stood up, this time, he is practicing swords, practicing the first layer of "Cosmic Swordsmanship", "only my time and space", only my time and space is a sword domain, and the sword domain is similar to a small world, the person who casts the sword domain is the master of this world, as long as someone steps into this sword domain range, this person's every move is known, so as to be invincible, however, when encountering a martial artist whose strength is too different, the sword domain can be easily destroyed by such a martial artist!

The reason why Jiu Ni swung the sword just now was because he wanted to adapt himself to the weight of the Chiyuan Sword, and he also activated the three inscriptions of the Chiyuan Sword, in order to let himself reach the limit, force himself, and put himself in a desperate situation, so that he could feel the power of time and space.

......

A few days have passed in the world of the picture scroll, and not a day has passed in the outside world, and the time flow rate of the picture scroll world is not the same as the time flow rate of the outside world, but ten to one, that is, the outside world has passed one day, and the picture scroll world is ten days!

Of course, for Jiu Ni, the advantages outweigh the disadvantages, and through this cultivation speed, he has countless times more cultivation time than others!

Although the flow of time is too fast, it will lead to a decrease in lifespan, but he is still young, and there is time, and a Spirit Extreme Realm martial artist can have a lifespan of two hundred years, which is at least twice that of ordinary people.

However, the martial artists of the body building realm are not really martial artists, they have not cultivated the aura of heaven and earth, so as to transform it into their own cultivation, so they still have the same lifespan as ordinary people, but their physique is countless times stronger than ordinary people!

Jiu Ni is still practicing the sword, from the beginning of the messy, no feeling, to now a little clue, a little look, if he continues to cultivate according to this state, he believes that he will succeed!

I don't know how many times I've been tired, how many times I've soaked my clothes, Jiu Ni feels that he seems to have reached the edge of a breakthrough, but he always feels that something is missing, so he can't break through for a long time!

In the end, he still stopped cultivating, blindly retreating and cultivating, he would always encounter a bottleneck, and it was time to go out for a walk!

Martial artists can endure loneliness, but they can't blindly retreat and cultivate, otherwise, if they fight with others, they will have no experience, and they will be defeated.

Martial artists, self-cultivation also requires self-cultivation, self-cultivation can enhance cultivation, and self-cultivation can strengthen will.

And self-cultivation and mind cultivation are interdependent, and both are indispensable! Most martial artists have strong cultivation and a firm Dao heart, if not, his cultivation and Dao heart are very weak, how can they be called strong!

To be a strong person, you must first have an unwavering heart, so as to eventually become a strong person through various trainings.

"Aren't you going to go out for a walk with me?" Jiu Ni said to Huang Qing.

"I'll come out again when you need me!" replied.

He heard Jiu Ni say that in the current Kunlun realm, the Phoenix clan has disappeared into the dust of history.

Yes, the two yuan will meet, it should be a thing or a person!

Therefore, he didn't promise Jiuni, and didn't want to bring more trouble to Jiuni because of his appearance!

Jiu Ni nodded, and then, he stepped out of the inner space of the jade pendant and calmly looked in a direction, which was the direction where the Sword Martial Sect was located, and it was also his next stop!