Early the next morning.

Lin Yuan came to the library pavilion and handed Bai Fan two stones.

The stone is black and white, the shape seems to split a Taiji diagram into two halves, the larger end of the two stones has a little opposite color to this stone, if the two stones are put together, it is a complete Taiji.

And these two stones are not big, and together they are the size of two thumb covers, Lin Yuan explained.

"These two stones are called Yin Yang Stone, which can transform the Five Elements Aura into Yin and Yang Aura and at the same time have the effect of harmonizing Yin and Yang. ”

"As for how to use it, junior brother, you only need to bring it with you. ”

Bai Fan took the Yin Yang Stone, and felt a warm current and coolness coming from the palm of his hand, and he knew that these two stones were not ordinary.

"Thank you, Senior Brother Linyuan. Bai Fan thanked him.

"It's just a trivial matter, after all, I'm also curious about your future achievements, junior brother. Lin Yuan smiled nonchalantly.

Then Lin Yuan briefly told Bai Fan a few words, and then drifted away, the library fell silent again, Bai Fan returned to the desk and put the yin and yang stone on the table, and carefully observed it for a while, but his eyes were clumsy, and his eyes hurt and he couldn't see any subtleties.

Bai Fan rubbed his eyes, found two red ropes from elsewhere, tied the two stones together, and then knitted them into two bracelets, one on each hand.

After doing all this, Bai Fan took out Bai Lin's transcription again.

In the past half a month, due to Bai Lin's help, Bai Fan's understanding of the formation has also been improved, and at the same time, Bai Fan has also found some formations that he can use now, although he can't induce the heaven and earth aura to activate the formation due to physical reasons, but not all formations need the heaven and earth aura to activate.

Bai Fan and Bai Lin found a formation diagram, which could be used without artificial activation, and only needed to place some of the more common alchemy materials in a suitable position, and they could carry out a simple spirit gathering, although the formation was not very advanced, but it was enough.

"But where should I go to find these Five Elements Spirit Stone?" Bai Fan pondered for a moment, "When the time comes, ask Senior Brother Qingxun." ”

In the blink of an eye, it was evening again, and Bai Fan sat cross-legged on the bed in the room, meditating, and trying to sense the wandering aura again.

What is different from before is that the yin and yang stones on Bai Fan's wrists gradually began to glow with black and white halos when Bai Fan entered the realm of sitting and forgetting, one black and one white.

Bai Fan, who was meditating, seemed to feel something, although he still couldn't feel the aura of heaven and earth around him, but he could perceive the black and white qi in the yin and yang stones on his wrists, Bai Fan tried to introduce the black and white qi into his body, and he unexpectedly succeeded, and these two gases made him inexplicably familiar, especially the white gas, this feeling was particularly strong.

But whether it is white gas or black gas, when it is introduced into the body, it will affect Bai Fan's mind.

The white gas with a hint of scorching heat made Bai Fan's heart restless, while the black gas with a hint of clammy coldness made Bai Fan negative.

After the aura was introduced into the body, it did not disappear, but all of it was retained, and the black qi was guided by Bai Fan, driving in the meridians, and everywhere it passed, there was a sense of decay and coolness, like maggots attached to the bones.

The black and white qi flowed back to the dantian through the meridians, and they actually began to fight, devouring each other, and the attributes of the two gases were opposite, and they could not be fused at all.

Between the battles, Bai Fan only felt that the dantian was churning like a river, with severe pain in the chaos, but fortunately, Bai Fan was already an innate body at this time, and the strength of the dantian was not comparable to ordinary people, but it was not easy.

At this time, his body seemed to be experiencing the two heavens of ice and fire, and in a hurry, Bai Fan had to hold the mentality of fighting, attracting the innate purple qi in his body, and rushing towards the black and white qi.

The addition of the innate purple qi also made the battlefield more intense, but it didn't take long for something unexpected to happen to Bai Fan, the black and white qi and the innate purple qi merged with each other, or the black and white qi was swallowed by the purple qi.

After the fusion, the innate purple qi was a little stronger than before, although it was only a trace, but it was a possibility, a possibility that Bai Fan could continue to cultivate.

"Could it be that the innate purple qi is also the same origin as the two qi of yin and yang?" Bai Fan's heart moved.

"Anyway, there is a feasible path now, first grow that innate purple qi, maybe there will be some different qualitative changes in the future. ”

With a thought in his heart, Bai Fan put all his mind on absorbing and guiding the two qi of yin and yang, yin and yang were inhaled into the body from the yin and yang stone, returned to the dantian through the meridians, and finally swallowed by the innate purple qi.

This process was extremely uncomfortable, but Bai Fan still persevered.

Bai Fan's current cultivation system is actually different from the martial arts cultivation in his previous life, in his previous life, he was also considered to be step-by-step, first condensing the true qi in his body, and then condensing the true qi into the true element, and then condensing the true yuan to obtain the innate purple qi.

But in this life, due to the strong pressure of the Five Elements Bridge and Bai Lin's guidance, he directly stepped through the process of condensing the true qi into the true element, and forced the innate purple qi in his body out.

After this successful attempt, a knot in Bai Fan's heart was finally untied, and for the rest of the time, Bai Fan was cultivating according to his own conjecture, and there was another thing that Bai Fan didn't expect, that is, those jade slips that he couldn't view before, and he could also check them now.

After ruling out many possibilities, he could only guess that it was because the innate purple qi absorbed the aura of this heaven and earth, thus establishing a connection with it, so that he could check those jade slips that needed to be opened by the aura, and those formations that could not be used before, Bai Fan also tried to sketch with his own innate purple qi, and the result was no different from the effect described in the formation diagram, and the several mountains that stood in front of him before were all destroyed.

This is estimated to be something that Fang Yiyun or the others of the Baiyun Sect did not expect, after all, absorbing the two qi of yin and yang is already very unique, and I have not had a fork because of the instability between the two qi of yin and yang, but has fed Bai Fan's innate purple qi.

But this does not mean that Bai Fan can absorb the two qi of yin and yang without fear, although his innate purple qi can be strengthened and strengthened by devouring these two origin gases, but his meridians cannot ignore the influence of the two qi of yin and yang, so after he absorbs it for a period of time, he will stop absorbing it, and regulate the meridians of the whole body through the innate purple qi, and absorb the yin and yang qi remaining in the meridians together, and when the meridians return to the best state, he will begin to absorb the qi of yin and yang, step by step.

In the next few days, Bai Fan deduced the formation in the library during the day, conditioning the meridians by the way, and at night, he began to absorb and refine the two qi of yin and yang, and it didn't take long for him to deduce a gathering array that could gather the five elements of aura, rather than just gathering one kind of aura.

The general small spirit gathering array actually does not dare to gather a variety of aura, one is the attribute of the five elements, and the convergence of multiple auras will be a little chaotic, and the other is unnecessary, after all, except for Bai Lin, no one can absorb the five kinds of aura, most of them are through a single spirit gathering array to assist themselves in cultivation, except for some large arrays, such as the giant spirit gathering array used by the mountain gate to gather aura, at this time it may be necessary to gather five kinds of aura.

But these formations are extremely complicated, and the effect is not only only the gathering of spirits, but also psychedelia, hidden truth and other functions, it is a bit overkill to use on an individual, even if Bai Fan wants to refer to it, with Bai Fan's identity as a beginner, the sect will not tell it, because the mountain gate array is already a sect secret.

Besides, Bai Fan, after he finished deducing the formation diagram, he didn't rush to depict it, he handed over the manuscript to Lin Yuan, Qing Xun, Su Yao, and finally found Elder Tianquan for reference and guidance, and it took about three months to toss back and forth, and the texture of the details and formations was modified no less than a hundred times, before this Five Elements Spirit Gathering Array was truly perfected.

During this period, the senior brothers and sisters also praised him for his talent in formation cultivation, and at the same time knew that he was cultivating with the two qi of yin and yang, and also worriedly reminded him to be careful when cultivating, don't let yin and yang be unbalanced, Bai Fan also nodded in response, indicating that he would be careful.

After that, he took the Five Elements Gathering Spirit Array, which had been perfected, and arranged one in his residence and in the library pavilion to assist his cultivation.

The days are quiet again.