The yellow booklet looks very old, and there are five ink-black ancient characters written on it, "Tianyuan Qi Refining Formula", and the pen is vigorous; the writing is neat and clean, without a trace of dust, which shows that Zhuo Li regards it as a treasure.

Yang Kai's eyes were bright, and all that appeared on his handsome little face was joy and excitement, and he said to himself in surprise: "It's actually the practice of the Qingxu Cave Heavenly Immortal Cultivation Qi Cultivation Period!"

Qi refining is the initial stage of cultivating immortals, the first step of cultivating immortals, and the so-called refining of qi is that disciples with the spiritual roots of cultivating immortals absorb the spiritual energy of heaven and earth to temper their own bodies, nourish their own essence, change their own physique, strengthen their own will, and lay a solid foundation for cultivating immortals.

"It's a pity that I don't have a spiritual root!" After rejoicing, Yang Kai smiled bitterly and sighed, "If there is a little spiritual root, it is an opportunity, maybe you can open the door to immortal cultivation and truly join the ranks of immortal cultivators." ”

Tian Yuan Qi Refining Technique is a practice that must be taught by the disciples of the Qingxu Cave Tianzhen Sect, in the Qingxu Cave Heaven for nearly four months of life, Yang Kai has grown a lot of knowledge, and he also knows the importance of the spiritual root to the cultivation of immortals, like him, a registered disciple who is called a waste material, without a spiritual root, it is impossible to cultivate immortals.

The quality of the spiritual root determines the speed of cultivation, the higher the quality, the faster the absorption of all kinds of spiritual energy from heaven and earth, the registered disciples of Qingxu Dongtian have a spiritual root of low quality, and the speed of cultivating immortals is the slowest, so Dongtian will not be used as a key cultivation, and people like Li Hang, Chen Peng, and Wang Yue who have high-grade spiritual roots, Dongtian will be regarded as elite cultivation;

Stroking the "Tianyuan Qi Refining Technique", Yang Kai was very unwilling, the blood of the ancestors of the Yang family flowed in his body, noble and magical, God was unfair, but he was deprived of the cultivation of immortal spirit roots.

"I don't believe that I can't cultivate, what spiritual roots, waste bodies, to hell with them!" Yang Kai's eyes showed ruthlessness, the unique arrogance of the Yang family was completely stimulated, his eyes were scorching, his belief was extremely firm, and he said: "God, what is a spiritual root and what is a waste body, is it really the so-called immortals who have the final say? To hell with everything, I should be proud of my own existence, no matter how hard it is and the road ahead is full of hardships, I Yang Kai will also stand proudly in the world of heaven and earth cultivating immortals." ”

Yang Kai was a decisive person, and decided to break the legend of the waste body by himself, so he immediately made up his mind, packed up his mood, walked towards Zhang Yang's location not far away, and said, "Zhang Yang, I have found the way, follow me!"

Opening the Yin Yang stone door, stepping over the stairs of unknown length, a stone tomb suddenly appeared in front of the two of them, a look of astonishment appeared on Zhang Yang's face, and he said: "Mom, there is actually a tomb, there will be no immortal treasure in it, right?" Yang Kai, we will dig up this tomb, how about it?"

When is it, Zhang Yang actually thought of digging a grave, Yang Kai straight out of the black line, glared at him and said: "Don't dream about the Spring and Autumn Festival, this tomb was built by me with my own hands half a month ago, and there is nothing in it except a skeleton!"

"What? is the tomb you built?" Zhang Yang's expression was extremely inconsistent with his honest appearance, and he looked at Yang Kai with a strange look in his eyes, and said, "You kid won't get any treasures, right?" Take it out and share it with your brother. ”

"You think you can find treasures everywhere in the world? Thank God for being able to get out of here, don't be whimsical. Of course, Yang Kai wouldn't tell him about getting the Mysterious Ring, and stared at Zhang Yang with an angry look.

"Don't look at me like that, you'll look straight hair!" Zhang Yang stuck out his tongue and spread his hands.

"Okay, follow me, and you can go out along this river. Yang Kai pulled up his robe, tied it diagonally around his waist, and pointed to the bubbling river channel, signaling Zhang Yang to get ready.

Yang Kai walked half a month ago, deeply aware of the danger that would appear in front of him, walking in front and patiently telling Zhang Yang what to pay attention to, it was the middle of winter, Zhang Yang gritted his teeth, trembling all over, but Yang Kai was different, when the cold hit the body, the hidden ring in the index finger would always release a trace of warm current, so that his body temperature would always remain in a balanced state.

"How do you, don't seem to be afraid of the cold at all?" asked in the cold water, his lips turned white, and he shuddered.

"I've walked through once, and my body is a little better than yours, but... but... it's also cold, it's just not as obvious as you..." Yang Kai pretended to have a very innocent expression, judging from the state of his expression, he was indeed attacked by the cold.

I don't know how long it took, a glimmer of light flickered in front of him, and a few miles ahead, suddenly brightened, the sun was shining, and the warmth shone on the two of them, Yang Kai didn't feel anything, but Zhang Yang was different, like a lamb about to be starved to death, suddenly looked at the steaming goat's milk in front of him, how not excited, how not greedy.

Yang Kai looked at Zhang Yang's slightly exaggerated behavior with a smile, touched his chin and said, "Zhang Yang, what are your plans next?"

Half a quarter of an hour later, Zhang Yang's face turned ruddy, and when he heard Yang Kai's question, he pondered slightly, and said: "I don't have any plans, when I was very young, my family died of illness, and by chance, I was brought back to the Qingxu Cave Heaven by the Ethereal Daoist and became a registered disciple." ”

"Zhang Yang, look at what this is?" Yang Kai asked as he handed him the Heavenly Yuan Qi Refining Technique in his arms.

"Hey, the entry qigong method of Qingxu Cave Heaven, where did you get it, with it, I can cultivate it by myself, the progress may be slower, but it is better than being a registered disciple. "Zhang Yang's eyes are shining, and I can't put it down.

"What Zhuo Li took from there, calculate the interest for us!" Thinking that Zhuo Li, Maoyan and others were targeting him, an inexplicable anger boiled in his heart, and after calming down his anger a little, Yang Kai said: "If it is useful, you can engrave a copy, if someone asks in the future, you must not say that you got it from me." ”

Zhang Yang nodded vigorously, pie fell from the sky, such a good thing fell on himself, the excitement was even more comfortable than the spring dream he had, he immediately tore off a piece of robe, put his index finger between his teeth and bit it hard, and suddenly, bright red blood beads came out of his fingers. While reading the yellow booklet, Zhang Yang used his index finger to write the Qi Refining Recipe word for word on his robe, and then carried the Qi Refining Recipe written in blood in his arms like a treasure, and then returned the Yellow Booklet to Yang Kai.

Then Yang Kai and Zhang Yang traveled for half a month before they appeared in a populated place, on this day, Yang Kai suddenly said to Zhang Yang: "Zhang Yang, I think it's time to separate, take care of the road ahead!"

Hearing this, Zhang Yang was stunned, a rare look of surprise appeared on his face, and he was silent for a while and said slowly: "That's fine, Yang Kai, take care all the way, I hope we will see each other again." ”

Zhang Yang knew Yang Kai's character very well, what had already been decided, even ten Heavenly Dragons couldn't pull back his determination, besides, he also needed to find a hidden place to cultivate the Tianyuan Qi Refining Technique that he obtained half a month ago, in fact, the two of them cultivated the method no less than a hundred times on the way, and each time they ended in failure.

Although Zhang Yang has a little spiritual root, it is difficult to comprehend the absorption and refining of the spiritual energy of heaven and earth, and there are several times when he catches clues in the dark, but he collapses in an instant, in fact, this feeling is like a kind of torture, Zhang Yang wants to find a secret place, and strive to reach the first level of qi refining in one fell swoop.

Yang Kai had his own plans, he had already made up his mind the moment he came out of the sinkhole, if it weren't for the fear that something would happen to Zhang Yang alone in the deep mountains and old forests, Yang Kai would have been impatient to do what had already been decided.

After a few words of greeting, Zhang Yang took the lead in heading towards the more prosperous town in front of him, he needed to prepare some food during the cultivation period, and Yang Kai turned around and walked in the direction of the road he came from after Zhang Yang left, and half a month later, Yang Kai went up a river and it took him seven days to return to the space of the stone tomb under the sinkhole.

Yang Kai had already calculated, every time he was hungry, the mysterious ring provided energy for himself, which meant that he didn't need food supplies, this was the only point that Yang Kai was stronger than a teenager with spiritual roots, and other immortal cultivators, when the realm reached the foundation building period, they could only rely on cultivation to absorb the essence of heaven and earth to replenish their physical energy, and slowly give up eating and drinking.

At present, Yang Kai knew that the realm of cultivating immortals was only the Qi Refining Period, the Foundation Building Period, the Ning Dan Period and the Yuan Infant Period, and it was unknown what else was above the Yuan Infant Period, even if it was the Ning Dan Period and the Yuan Infant Period, the Tian Yuan Qi Refining Recipe only mentioned the name, and the introduction of the Foundation Building Period was relatively rare, and the Qi Refining Period was relatively well recorded.

The location of Qingxu Cave Heaven belongs to the Qi State, and the Qi Country is extremely broad, and it is one of the seven major cultivation realms in the Eastern Regions, with jurisdiction over many Cave Heavens, Blessed Lands, and sects, sects, sects, and sects that are more powerful than the Cave Heaven Blessed Land. Qi is one of the Seven Heroes of the Eastern Regions, and I heard that there are many masters in the Yuan Infant Stage, and there is even a legendary existence, and the background is very good. The other six states were Chu, Yan, Korea, Zhao, Wei, and Qin.

The Seven Kingdoms of Xiuzhen have dominated the Eastern Regions for hundreds of thousands of years, and there are many talents, and they have contracts with each other to unite into the Xiuzhen Alliance, and the leaders of the alliance take turns to serve every hundred years.

The division of forces in the Eastern Regions, Yang Kai didn't know about it before, and it was not circulated among the disciples of the Qingxu Cave Heaven, but there was a record on the back page of the Tianyuan Qi Refining Technique in his hand, at this moment, Yang Kai's vision was even broader, the Qingxu Cave Heaven where he was located was just a sect that did not enter the cultivation world, the more he knew, the more confident Yang Kai was in himself, even if he didn't cultivate the Immortal Spirit Root, he had to break the legend, because the legend itself was used to break it.

Yang Kai sat down cross-legged on the spot, carefully reading every paragraph of the Qi Refining Technique, every sentence, and even experiencing the meaning of every word in it, Yang Kai felt that the Tianyuan Qi Refining Technique was broad and profound, and the cultivation exercises and breathing techniques recorded on it far surpassed the ordinary Jianghu martial arts in the world.

The first to third layers are to absorb the aura of heaven and earth to temper the bloodline, muscles, and condense spiritual power, and the second layer can begin to practice some simple auxiliary attack techniques; when you reach the fourth layer, you can fly with a sword like Lin Feng, and the fifth layer of qi refining is promoted to the sixth layer of qi refining, which is an insurmountable barrier in the qi refining period, because you need to know your heart.

The so-called clear heart is to establish one's own immortal path Dao heart, a small step is difficult for many cultivators in the world, many people will not be able to cross this barrier in their lifetime, even those with high-grade spiritual roots are no exception, in the end they just live a few more years than ordinary people.

Yang Kai sat cross-legged, according to the method recorded in the Qi Refining Recipe to lead the Heaven and Earth Spiritual Qi into the body, the process was quite long, and he needed to feel the changes in the Heaven and Earth Spiritual Qi, this feeling should be based on the quality of the spiritual root, and Yang Kai, a waste body, had no spiritual root, it was more difficult to sense the changes of the Heaven and Earth Spiritual Qi than others, how could it be thousands or thousands of times?