At this time, Ji Zhi was also very anxious, the treatment of Song Ruxue was at a critical juncture, and he could not withdraw his work, Ji Zhi had an understanding of the external force by slowly canceling those external forces, and now the matter was urgent, he had to make a bold method, he found that whether it was his own internal force, or Song Ruxue's internal force, even if the external force, there was a certain special frequency of operation, such as the heartbeat and pulse of the human body, there were different frequencies, the reason why Ji Zhi and Song Ruxue's internal force were easily integrated, was because Ji Zhi's internal force and Song Ruxue's internal force frequency was about the same, and the two familiar internal forces before the fusion would automatically adjust the frequency to the same, and then it will be fused, so is it that the closer the frequency, the smaller the repulsion? Ji Zhi remembered that when he subdued the dragon soul before, it was also because he felt that the aura was similar, so he tried to boldly absorb the attack sent by the dragon soul, so is there a way to absorb this external force as well? Ji Zhi's subtle discovery, he originally thought to practice and study it in the future, but now he has to take a risk, for this reason he specially left the frequency of the external force every time he offset the external force, and found that the frequency of the external force is about 3,000 times between one exhale and one inhale, and normal people breathe fifteen to twenty times a minute, most of them are about fifteen times, according to fifteen breaths per minute, that is, 45,000 fluctuations in one minute, that is, about 750 times a second, and his own internal force is about 2,000 times between one exhale and one breath when it is not controlled, Although it is not as accurate as the current clock, it can help himself, Ji Zhi also found that this frequency is not eternal, for example, when he uses the mental method to mobilize the internal force, there will be fluctuation differences, just like the heartbeat of a person, when it is calm, it will be about 60 times, and it will reach more than 100 after running, and the same is true for breathing, and the internal force of this cultivation has also become a part of his body, and naturally there will be changes, just because of this change, Ji Zhi intends to change the frequency of his internal force to achieve consistency with the external force, so that it is very likely to be able to integrate with the external force, so it is easy to eliminate these external forces。

Ji Zhi didn't want to use this method, after all, it was just his own guess, it was too dangerous to experiment with Song Ruxue, but at this critical moment, if the cow outside broke through his defense, then he and Song Ruxue would be more dangerous, weighing the pros and cons, he still didn't dare to experiment on Song Ruxue, if he tried it, at this moment, he suddenly had a flash of inspiration, and had an idea, Ji Zhi separated a trace of internal force and released it outward, following the external wind control technique, Ji Zhi analyzed the frequency of gas in the nearby environment, and the wind control technique is based on the fluctuations in the wind to achieve the viewing of information, then there will be gas fluctuations anywhere in the outside world, otherwise there will be no various sounds, Most people know these common sense, it belongs to a natural phenomenon, but I don't know whether this fluctuation is related to the frequency fluctuation in the internal force that Ji Zhi thinks, and only verification will know, so Ji Zhi released the internal force to check, and what surprised Ji Zhi was that it was consistent with his conjecture, he thought to himself that it seems that cultivation is inseparable from science now, but he admires his ancestors even more, and people already know these at that time, and it seems that the wind control technique has evolved according to this characteristic.

Ji Zhi tried to analyze the fluctuation frequency in the surrounding environment with the wind control technique, and tried to align the external internal force with the frequency of the outside world, because the frequency of the outside world changes greatly and changes rapidly. Ji Zhi always can't keep up with the rhythm, a few times it was hard to keep up, and then it changed again, Ji Zhi still has to adjust, a few times down Ji Zhi found that every time he is consistent with the frequency of the surrounding environment, he seems to be integrated into nature, become a part of it, Ji Zhi thinks that he will be consistent with the frequency of nature and will be integrated into it as if he disappeared, boldly conceived, carefully verified, Ji Zhi carefully followed the pace of the change of the frequency of nature, and slowly he found the law, from the beginning to follow one or two, gradually more and more, and then it was able to keep for a few minutes, and then he found that nature has a law to follow, but also affected by some other influences, such as wind, and the impulse brought by the impact of those big green oxen, will change, this wonder of nature is really infinite, Ji Zhi used the news given by the wind control technique to start to know the influence of various external forces plus the unique laws of nature, can analyze the frequency of the next step, Ji Zhi can also be integrated with the neighborhood for a long time. After that, Ji Zhi tried to adjust Song Ruxue's internal force to one with himself, controlling the internal force of the two to integrate with nature.

At this moment, a magical scene appeared, the collision of the green cow has caused Ji Zhi's enchantment to collapse, the green cow collided directly, the strange is strange, Ji Zhi and Song Ruxue who obviously exist in the entity are like images, the green cow penetrates directly from the body of the two, those brute bulls are also wondering, obviously crashed into them, but there is no sense of substance, the two are like illusory, dozens of green cows did not hit anything, rushed out a few meters before stopping, still did not give up, turned their heads and bumped again, several times in the past.

Ji Zhi was relieved at this time, he hadn't figured out what the principle was, probably it was consistent with the surrounding frequency, and he had really integrated into it, and it couldn't have an impact, maybe he was consistent with the outside world and at the same time maintained the same frequency with the aura emitted by these cows, and the fusion principle couldn't affect himself. He didn't think about the specific reason at this time, but since the experiment was successful, although there was an unexpected gain, the most important thing at this time was to continue to treat Song Ruxue. With this experience, it is easy for Ji Zhi to align the frequency of his internal force with that external force, after all, the fluctuation and change of this external force is much worse than the change in the external environment, so that the external force is easily dissolved by Ji Zhi.

It turned out to be so simple, but the changes during this period were only known to Ji Zhi, which was a special skill that Ji Zhi had penetrated in his cultivation, and Ji Zhi had a new understanding of nature and cultivation. And because of this, Ji Zhi unconsciously comprehended the true meaning of the seventh layer of the Yellow Emperor's Neijing, which played a key role in the fusion of yin and yang in his body in the future.

Song Ruxue's internal and external forces were lifted, and she woke up slowly, seeing that she was lying in Ji Zhi's arms, she instantly felt a lot more relieved, and buried herself in Ji Zhi's arms and waited sweetly.

Ji Zhi and Song Ruxue stayed quietly for a minute, and Ji Zhi said: "Okay, look at where we are, if you want to kiss, wait until you go back, hehehe." Ji Zhi smiled evilly.

"I hate it, say something embarrassing. Song Ruxue said with a flushed face. Song Ruxue knew that Ji Zhi would definitely come desperately to save herself, and she was relieved to see that Ji Zhi was fine.

Just when this side was still affectionate, that side had already hit a white-hot state, just when the green cow was about to break through the Ji Zhi enchantment, the firebird finally couldn't bear it, angry roar, wings spread, doubled again, not because of his body growth, but because of the release of internal force, the internal force transformed into a materialized flame, as if the firebird's body soared, and then the firebird wings fanned, and the flames shot in all directions, and then the firebird continued to release the internal force, all within a radius of several miles became a sea of fire, and the warring beasts around quickly dodged, and the cattle who couldn't dodge instantly turned into nothing。 The wolf clan was relatively far away, and the affected ones were smaller, only some of the ghosts that were stained with flames and burned cried wolves and hurriedly rolled in the snow. The bull leader hurriedly protected his whole body and retreated sharply backwards, avoiding the sea of fire.

When Ji Zhi saw this scene, he had to appear quickly, this stupid bird was playing with his life, using the method of extreme yang in the extremely cold land, and the greater the play, the greater the backlash.

At this time, Ji Zhi was put in the sea of fire by the firebird, Ji Zhi knew that this was the firebird to protect himself, he knew that he was not afraid of flames, Ji Zhi sent Song Ruxue out of the sea of fire with internal force, jumped into the sky, got out of the sea of fire, and said: "Silly bird, you are crazy, you want to burn Xuefeng Mountain." ”

Ji Zhi said, stretched out his hand to inhale all the flames from the palm of his hand, a large sea of fire instantly compressed into Ji Zhi's palm, a flame jumped in Ji Zhi's hand, Ji Zhi absorbed the flames around him, and instantly relieved the pressure of the firebird, and the firebird said: "You finally came out, I won't be able to withstand it if it's too late, I'll leave it to you, I'm going back to rest, I'm tired to death." Saying that, a firelight flashed, and the firebird entered Ji Zhi's jade pendant, the external invasion of the firebird was too great, and it consumed a lot of internal force, and it urgently needed to rest.

"You've tried so hard to bring yourself here, and you're sending these brutes over? Ji Zhi stopped in the middle of the airway.

After the bull leader reorganized the team, he had already lost half of his side, and looked at Ji Zhi in mid-air and said: "The heir of the Yellow Emperor is nothing more than this, if it weren't for the protection of the divine beast, what else would you have to be arrogant about." ”

Ji Zhi snorted coldly, ignored it, and looked at the wolf king, everything before Ji Zhi was clear, but the wolf king didn't know that at this time, the divine beast firebird was gone, and it didn't know what to do.

Ji Zhi waved his hand, and a ball of cold qi entered the wolves, and the wolves thought that Ji Zhi was going to be unfavorable to them, but they couldn't dodge, and then they knew that the cold qi that Ji Zhi released attached to his body and instantly cooled the skin that had been burned by the flames just now, and it was no longer painful.

"Since my bird has taken you, it is my friend, and you can follow me if you wish. Ji Zhi said.

After Ji Zhi finished speaking, his body in mid-air turned his head and feet upside down and rushed to the ground, and at the same time said, "Then let you see my strength." Freezing Technique, Fixed. ”

Ji Zhi said while stretching out his right palm has touched the ice and snow on the ground, and with Ji Zhi's sentence, some cattle standing on the ground were wrapped in the ice and snow that suddenly rose from the ground, and they were frozen in an instant and couldn't move.