This Dan scroll is what Lin Chen has learned all his life, and the huge knowledge contained in it is definitely something that the sword spirit cannot give, and when he got this Dan scroll, just by turning a few pages, Xiao Yu was deeply attracted by the subtlety of it.

His mind was calm, he slowly closed the Danjuan, and then slowly closed his eyes, Xiao Yu looked at his nose and nose, and slowly condensed his spiritual power with the method of five hearts to the sky.

"The spirit is divided into yin and yang, yin and yang lead to heaven and earth, and the spirit moves, and life begins. ”

Silently reciting the secret method on the Dan scroll, this mantra that seems obscure to others seems to have become extremely simple and smooth in Xiao Yu's place.

And after maintaining this state for about half an hour, Xiao Yu's spiritual power was finally completely condensed, and the spiritual water droplets in the sea no longer had the rough feeling before, but became more and more condensed and lubricated.

Like a crystal clear pearl, constantly rotating in Xiao Yu's sea of knowledge, a strong spiritual coercion was also derived, and it instantly spread in the room.

Between the spiritual power, everything around him seems to have entered Xiao Yu's control, and no trace can escape Xiao Yu's perception.

Compared with Xuan Qi, the energy of spiritual power seems to be more ethereal, but it is real, as long as it is used well, the effect achieved is no less than some powerful Xuan Qi!

He exhaled a deep breath, his originally closed eyes suddenly opened, and between the flash of essence, the spiritual water droplets in the sea of consciousness continued to rotate, and a strong absorbing force derived from Xiao Yu's body.

The spiritual power that originally came out in three dimensions, under this strong suction, couldn't help but burst towards Xiao Yu. Xiao Yu's face was calm, and there were no waves in the ancient well, but he did not stop absorbing spiritual power, just like a long whale absorbing water, but between a few breaths, the original out-of-body spiritual power was absorbed by Xiao Yu.

At the same time, the spiritual droplets that had already dissipated in his mind condensed out again under Xiao Yu's control, and this time, whether it was the speed of rotation or the smoothness of the body surface, it was a world of difference from just now.

"With the help of the continuous disintegration and condensation of spiritual power, to achieve the effect of purifying spiritual power, you are so sure, can you persevere to the end? You must know that this method of refining spiritual power, even some alchemists who have come out of the divine realm, have not been able to do it!"

Sword Spirit's face was solemn, his tone was serious, and he said in a deep voice to Xiao Yu: "The disintegration and condensation of this spiritual power is different every time, but in general, the power of repulsion is also showing a stronger and stronger trend, you can hold on once, you may not be able to hold on to the following ......"

The sword spirit's voice was dull, and he couldn't help but have a trace of worry on his face, and then said slowly: "Are you sure you have to persevere, enter the divine realm to purify your spiritual power, although it is theoretically feasible, but in practice, the success rate is extremely low!"

With a grin at the corner of his mouth, Xiao Yu chuckled, without hesitation, he directly disintegrated the spiritual water droplets that had just been condensed again, and the original spiritual power burst out again, filling the surroundings.

Seeing Xiao Yu like this, the sword spirit also sighed, gave up the idea of persuading Xiao Yu, and floated quietly aside, quietly like rotten wood.

Time slipped away minute by minute in such a quiet state, and the spiritual coercion that had originally permeated became more and more huge, and in the end, even some sundries placed in the room couldn't help but shake under this spiritual coercion.

After successfully purifying the spiritual power several times, now in Xiao Yu's mind, the original sense of confusion has disappeared, and the original drop of spiritual water has also disappeared, replaced by a palm-sized spiritual vortex, the vortex is constantly trembling, and the powerful absorption power bursts out, and the original diffuse spiritual power is also surging towards Xiao Yu under this strong suction.

And Xiao Yu's face became extremely pale in the next moment, and that strong spiritual power was far beyond the scope of his own sea of knowledge, and now in his sea of knowledge, there was a faint feeling of imminent collapse.

Forcibly suppressing the feeling of collapse in his sea of consciousness, Xiao Yu's eyes were about to split, he clenched his teeth tightly, and continued to purify and refine his spiritual power in accordance with the urging method recorded in the Danjuan.

Xiao Yu's eyes lit up, and in the sea of his knowledge, an unstoppable huge force suddenly appeared, and it instantly pressed towards the swirling spiritual vortex.

"Bang"

There didn't seem to be any movement in the outside world, but Xiao Yu's pupils suddenly contracted at this moment, and he could clearly feel that the huge force had collided with the spiritual vortex in an instant!

And between the two, there is not the slightest gap, it seems to be natural, but the power of a strong spiritual collision is also suddenly generated at this moment, and it collides fiercely towards Xiao Yu's sea of knowledge!

"Bang!"

The intense pain caused Xiao Yu to punch directly on the ground, and the hard floor, which could be regarded as a hard floor, completely collapsed and fell apart under this blow, and the earth and rocks quickly splashed, like a meteor.

And at this moment, Xiao Yu's face was completely covered with a hideous color, and the consequence of forcibly compressing and purifying his spiritual power was this unbearable pain.

Different from ordinary pain, ordinary pain just needs to close the five senses, that is, it can be resisted as much as possible, but this kind of mental pain tests only a person's perseverance.

If you have perseverance and can endure great suffering, you can get through it, otherwise, you will be tortured into a madman in this endless mental pain!

The spiritual purification recorded in the Dan scroll should have been cultivated only in the Divine Realm, but at this moment, Xiao Yu was doing the opposite, trying to cultivate when he entered the Divine Realm, and the hardships he suffered can be imagined.

But Xiao Yu still relied on his supreme perseverance and persistence to carry out this refining technique to the last moment!

The spiritual ripples produced by the collision of the great force and the spiritual vortex in the sea of knowledge have already destroyed Xiao Yu's sea of knowledge. If Xiao Yu's knowledge of the sea could be called a brick house before, now, at best, it is a thatched house, even if there is a gust of wind, it may cause it to collapse.

But Xiao Yu's sea of knowledge has never collapsed, just like a green pine standing tall in a storm, it has never bent and never collapsed despite the storm outside.

Xiao Yu's face was gloomy, the handprints in his hands continued to form, and the powerful energy continued to condense around him, and gradually, a mysterious formation was formed, and Xiao Yu became the eye of the formation, suppressing the Quartet!

A strong coercion, as if falling from the sky, with a desolate and eternal aura, instantly diffused from the array, and then quickly absorbed by Xiao Yu, in Xiao Yu's sea of knowledge, quickly formed a more huge oppressive force, fiercely pressed down towards the stubborn spiritual vortex.

With the addition of this new force, the original stalemate has finally been broken. The speed of the spiritual vortex was spinning slower and slower, as if it was stuck in a quagmire, and the resistance derived from the rotation finally slowly decreased, and finally disappeared into nothingness.

The sword spirit floated on the side, and suddenly, a trace of disbelief erupted in his eyes, staring at the formation formed by Xiao Yu, as if muttering: "This kid, is it to forcibly open the Yin-Yang Bridge and communicate with heaven and earth, so as to complete the purification of spiritual power?"

He shook his head slowly, as if he was talking to himself: "This idea is also bold, and only this kid dares to try it." ”

Then he chuckled, didn't pay attention to Xiao Yu, and observed from the sidelines, all decisions were made by Xiao Yu himself, and the consequences were naturally borne by himself, but looking at the current situation, this kid is probably right this time......

And Xiao Yu's face at the moment, although there is some distorted color caused by pain, but more, it is a sense of joy, just now, he has forcibly built a magic circle in accordance with the method recorded on the Danjuan, forcibly opened up the yin and yang spirit, and oppressed with the power of heaven and earth, so that the spiritual vortex was quickly compressed away.

When the coercion of heaven and earth retreated, Xiao Yu's original situation in the sea of knowledge had been completely repaired, and the tenacity of the sea of knowledge had become much stronger than before under the coercion of heaven and earth.

At this moment, in Xiao Yu's sea of consciousness, a drop of spiritual water is constantly rotating, and its volume is already half smaller than before, but the purity of this spiritual power is several times stronger than before!

And the communication between the yin and yang bridges of spiritual power has a subtle connection with heaven and earth, and it seems that when the spiritual power is running, it contains a kind of supreme avenue of heaven and earth.

Feeling the changes in his body, Xiao Yu's face couldn't help but be happy, and now it seems that he should have reached the realm of "Dan Heart Clear" recorded in the Dan Scroll!

Penetrating the Dan Heart was originally something that could only be achieved by refining the alchemist of the God Realm, but now Xiao Yu has forcibly penetrated the spiritual yin and yang with the power of heaven and earth, and he has actually reached this realm!

The mind is tranquil and relieved, and it is in harmony with all things.

Under this realm of Dan's clear heart, the success rate of refining pills and the quality of pills will definitely be improved to a great extent, and it is not in vain that Xiao Yu has endured such pain......

Slowly getting up, the original feeling of convulsive pain in the sea of consciousness has now dissipated, and although the quantity of spiritual power is much less, the quality is definitely not the same as before!

"Through the two bridges of heaven and earth, yin and yang, this spiritual strength has increased a lot, and now, refining some second-grade pills, the success rate will definitely increase to more than sixty percent!"

Sword Spirit's somewhat relieved voice also sounded at this moment, glanced at Xiao Yu, and said a little jokingly: "Boy, this entry into the Divine Realm, you can be regarded as completely consolidated, and the refinement of your spiritual power, even if it is some ordinary Divine Realm alchemist, cannot be compared to you......"

"More than sixty percent?"

The corners of Xiao Yu's mouth grinned, and a light sigh of expectation also resounded in the room:

"Since that's the case, let's refine all of this Exquisite Xuanxin Pill in the next few days!"