From the peak of the Foundation Building Realm to the early stage of the Jiedan Realm, it is a big realm to cross, and the realm barriers in between them are very strong, and it is not an exaggeration to say that they are separated by a moat!

Because, for every promotion between the two small realms, it is possible to break through by relying on the accumulation of energy, and when encountering the promotion of the big realm, it must also be accompanied by the promotion of Zhihai to break through!

All cultivators know that it is very difficult to improve spiritual power, and it is even more difficult to break through the barriers and reach a higher realm!

However, Cui Ming is now out of the danger of exploding and has decided to give it a go, the worst result is nothing more than failure to advance, and there will be no misfortune in life, what is there to be afraid of?

However, there is still a long work to be done before impacting the barrier of sea knowledge, and that is to refine the Yuan Force into a more advanced Immortal Yuan Power!

"Refining!"

Because he didn't prepare the Ning Yuan Pill and the Casting Jin Pill in advance, he could only rely on his own cultivation slowly. This also has benefits, the realm is more solid, and it has no impact on future promotion.

Cui Ming separated most of his spiritual sense, entered the dantian, surrounded a cloud of yuan force, and began to compress it fiercely.

Under the tremendous pressure, the Yuan Force continued to deform, and the impurities were discharged little by little, becoming more and more refined, and the strength became stronger and stronger.

Fortunately, at this time, Cui Ming can basically stop caring about Diao Gui and Zhuang Si, they have become the end of the crossbow, and it is only a matter of time before they are sucked into dry corpses. Therefore, he only had to concentrate on refining the Yuan Force!

Although this mass of Yuan Force is only the size of a zhang, it has been refined for so long, and the small is half smaller, and there is still no tendency to turn golden.

"Alas, the Yudan Realm is really not so easy to advance as imagined! How long will it take to transform this mass of Yuan Force into Immortal Yuan Power? If it goes on like this, it's hard that Yuan Li hasn't been refined, but I've transformed it myself!

Just when Cui Mingdu was about to lose confidence, the dragon power in the dantian spontaneously moved! The number of them is not much, the key is the high level, I saw them fly out a few wisps, turned into light cyan, joined the net of spiritual sense, and violently eroded inside.

"Huh? The power of the dragon is really extraordinary, no wonder the boss is so powerful! ”

Cui Ming was first shocked, then overjoyed, and continued to drop the dragon power in other places and joined the ranks of the refining army.

"Boom!"

With a muffled sound, this mass of Yuan Force was compressed by one-third at once, and then a trace of pale gold appeared, which was very dazzling in the dantian.

Well? So fast?

This happiness came too suddenly, so that Cui Ming was stunned immediately!

After a few seconds, he truly believed that Yuan Li had indeed begun to transform into Immortal Yuan Power!

Come on!

Cui Ming was overjoyed, and secretly said in his heart, and he was even more violently refined, and he felt a sense of strength.

After half an hour, this mass of Yuan Force was finally completely refined, emitting a pale golden brilliant light, illuminating the dantian and exuding a trembling coercion.

"This ...... Is this the magical power of the Immortal Yuan? The strength is really several times stronger than the Yuan Force, and it really deserves to be a heavy realm and a heavy sky! ”

Cui Ming sensed the power of the immortal yuan, and couldn't help but praise again and again. His confidence was even stronger, and he once again surrounded a larger mass of Yuan Force with his spiritual sense, and began the arduous path of refining again.

This time, it was a familiar road, and it saved half the time compared to the beginning, and it refined this mass of Yuan Force. With the increase of the power of the Immortal Yuan, Cui Ming's refining power increased dramatically, and the refining speed accelerated again.

I don't know when, Diao Gui and Zhuang Si have turned into dried corpses and fallen to the ground, Cui Ming also withdrew his hands, pinched the seal, and continued to absorb the power of the dragon in the spring water with the Star Absorbing Dafa, while refining the Yuan Force......

As the dragon's power increases, the refining speed has increased by a bit.

This is the power of the earth dragon, with the bloodline inheritance of the divine beast, although it is very rare, but it is also many times higher than the bloodline of these mortals, and the refining is naturally twice the result with half the effort!

Cui Ming was immersed in refining and forgot the passage of time. I didn't know that after a few days, he suddenly discovered a great joy, the liquid yuan force in the center of the dantian had been refined!

A large cloud of pale golden liquid tumbled and flowed in the dantian, exuding a strong coercion.

This...... It's all the power of the Immortal Yuan!

The first crucial step has been completed in advancing to the Jie Dan Realm, Cui Ming exclaimed in surprise in his heart, the next step is to proceed to the second step-condensing the Jin Dan!

This step is more difficult than refining the Yuan Force, but if the opportunity is good enough, it won't take much time, and it may be possible to condense into a golden pill!

Now, there is just this opportunity, that is, the trace of mysterious dragon power contained in the spring water, which is much higher than the level of this immortal power, equivalent to an adult, forcing a child to transform into a golden pill.

Cui Ming recovered for an hour before his mental strength returned to its peak. He couldn't wait to call up all his spiritual sense, entered the dantian, and his spiritual power surged out, enveloping the power of the immortal yuan in the center.

"All the dragon's power is dispatched!"

Cui Ming said secretly, and the dragon power, which was now much stronger, pounced without any scruples, and drilled into it along the path of spiritual exploration. The great net of spiritual power quickly shrank inward, and the pressure increased several times at once.

The process of condensing the golden pill this time was much easier than when Xiang Feiyu condensed the golden pill, and in less than an hour, the power of the immortal yuan in the net was only more than a foot bigger, and it also became a round ball, as bright as gold, exuding a stronger aura!

However, everything stopped there, no matter how hard Cui Ming tried in the future, there was still no change in the prototype of the golden pill!

Well? What's going on? Am I going to fall short?

Cui Ming's heart, which almost jumped out of his chest with joy, slowly cooled down, and pondered the key to advancing to the Yudan realm......

"Hey, I'm so stupid that I forgot the trick that the boss told me! Whenever you advance to the great realm, you must be accompanied by a breakthrough in knowing the sea to succeed! ”

After more than ten minutes, Cui Ming finally came to his senses, kept scolding his foolishness, and then prayed silently: "Dragon power, everything depends on you!" ”

Cui Ming's spiritual sense led the dragon's power back to the sea of knowledge, and saw the boundless sea of knowledge rolling in the thick fog, and in the middle was also a liquid spiritual power, with unlimited power, and the sea of fog that had spontaneously driven the spiritual power was attacking the realm barrier.

"I'm coming!"

Cui Ming activated his spiritual sense, and his powerful spiritual power swept up a large sea of fog of spiritual power, turning into various weapons, swords, guns, swords, and halberds, and he slammed into the top with a hula.

Rumble! Rumble! Rumble!

……

The sea of knowledge is turbulent, and huge vibrations continue to occur, and the rumbling sound is endless. With this huge impact, the realm barrier of Zhihai also continued to shake!