In the cave, the iron-armored bull and the earth bear king were looking for Yi Cheng everywhere, while the golden-beaked eagle was guarding the entrance of the cave.

Their minds have been opened, and they are hiding in the cave, so let the Earth Bear King and the Iron Armored Bull look inside, and the golden-beaked eagle, who is good at speed, guards the entrance of the cave.

Two hours have passed, and the two beasts who have searched for Yi Cheng have found nothing, they have searched the cave more than twice, and they have not found anything at all, but they still persistent in their search, and they do not intend to give up at all.

In their thousand-year-long life, such a shameful thing has never happened, so even if it takes ten days and half a month, they have to find out the human being.

After two hours of recovery, he refined a small part of the elixir accumulated in his body, but at this time, his spiritual power had been fully recovered, and the remaining huge amount of medicinal power could not be left, and it must be consumed quickly, otherwise it would still leave hidden dangers.

After refining just now, he found that he had absorbed a little more spiritual power than before, this discovery made Yi Cheng overjoyed, although it was only a faint trace, but this showed that his bottleneck had been loosened, and now the remaining large amount of medicinal power had to be used by Yi Cheng to impact the bottleneck.

The bottleneck is the critical point that is extremely difficult to break through when the monk cultivates, and if you want to break through this critical point, you must break the bottleneck, otherwise no matter how much spiritual power you have, it will not help.

There are many reasons for the formation of bottlenecks, sometimes because the control of spiritual power is not pure enough, so even if the total amount of spiritual power meets the requirements for breakthrough, it still cannot improve cultivation. This situation is the main reason why most people are stuck in bottlenecks;

The second is the restriction of qualifications, the lower the qualifications, the slower the absorption of spiritual power, the more difficult it is to improve the cultivation, and the greater the resistance encountered when improving the cultivation, the bottleneck of the monks with good qualifications may be like a piece of window paper, which can be broken at one point, and the monks with poor qualifications are equivalent to being separated by a stone wall.

Therefore, most of those monks with poor qualifications will choose to let themselves break through in the crisis when they encounter a bottleneck, because only on the verge of life and death can they inadvertently burst out with amazing potential, causing an impact on the bottleneck, thus breaking the stone wall.

Therefore, when some monks start to cultivate, they are determined that they will not be able to break through a certain realm for the rest of their lives, because it is too difficult to break through that bottleneck, and it is almost impossible.

Bottlenecks not only exist among monks, but also among the same demon beasts.

For example, the wind wolf, although this kind of demon beast is only a first order, but it is in groups, and it is one of the most active demon beasts in the vast mountain range.

The vast majority of wind wolves are only first-order, and only one out of every thousand can only become second-order wolf kings.

This was already their limit, and they had never heard of the existence of a third-order wind wolf.

In the third case, it is relatively rare, and some monks encounter obstacles in their cultivation, and their knots are difficult to solve, and their cultivation will also stagnate.

In this case, only the heart knot can break through the bottleneck, but this one is also the most ethereal, no one knows how to untie the heart knot, so the bell must be tied to the bell, only by themselves, it is difficult for others to help.

And Yi Cheng's bottleneck is the first and most common, in order to break through his cultivation, he specially found some demon beasts that were a big level higher than him to fight.

It's okay in front, although there are also a lot of injuries, Thunder Leopard and Forest Giant Ape will beat Yi Cheng more miserably, but there is no danger of life, everything is under control, but this time Yi Cheng was besieged by three demon beasts, it is really a line between life and death, if he didn't know the cave here, I'm afraid that it will be a pile of bones now, or there will be no bones left.

At this time, it was not easy for the rest of his life to survive, and Yi Cheng's bottleneck was also loosened, how could he not be happy.

So Yi Cheng seized the time to hit this bottleneck that had been stuck for a year.

The two demon beasts in the cave were still tirelessly looking for Yi Cheng, but this cave stretched and complicated, and they didn't know how many hundred miles there was, and they searched aimlessly, but they didn't find it at all.

Even if they passed over Yi Cheng's head a few times, they couldn't always think about the divine sense to explore the underground, so they missed it.

And Yi Cheng was sweating on the top of his head at this time, and the spiritual power on his body was surging, fortunately, he was in the submersible sail, a few feet deeper underground, otherwise he would really be found by the two beasts.

Yi Cheng tried his best to compress the liquefied spiritual power in his body, and the undigested elixir provided Yi Cheng with spiritual power far and continuously at this time, the difference between the middle and early stages of foundation building was that the spiritual fluid in his body was more refined, even if the volume did not change, but the total amount more than doubled.

Because of the huge oppressive force, Yi Cheng's dantian was faintly painful, but at this time Yi Cheng could only grit his teeth and insist, the bottleneck was a very strange thing, if he didn't seize the opportunity to break through in one fell swoop, maybe it would be back to the same after a while, so even if Yi Cheng was in pain, he had to bear it.

The spiritual power in Yi Cheng's body is several times that of the same level, and the time required for this breakthrough is naturally doubled, at this time, Yi Cheng doesn't know that the Dao has passed for too long, in short, his current feeling is a hundred times more painful than being injured by the golden beak eagle just now.

The pain from the dantian made him tremble from the inside out, but Yi Cheng still kept his posture unchanged, at this time, the spiritual power in his body had been condensed ninety, and the medicinal power of those pills had also been consumed by Yi Cheng, which was less than one percent after the worst, how could Yi Cheng give up.

Another half an hour passed, Yi Cheng felt that the spiritual power in his body had accelerated a lot, and the meridians seemed to be stronger.

Now that there was not much medicinal power left, Yi Cheng felt that his spiritual power had more than doubled, and with the operation of the Great Yan Heavenly Technique, the spiritual power around him slowly converged towards him.

Yi Cheng knew that his current breakthrough had been completed, and he could continue to absorb the spiritual power of the outside world to cultivate, and the bottleneck did not exist for the time being.

As the exercises worked, Yi Cheng's dantian pain gradually disappeared, but Yi Cheng did not stop immediately, but let the newly compressed spiritual fluid run in his body, allowing his body to slowly adapt to the change in strength.

After half a day like this, Yi Cheng stopped his luck, he had just broken through, although it took time to consolidate his cultivation, but this place was not suitable for him.

Yi Cheng broke through the middle stage of foundation building, not only did his spiritual power more than double, but his divine sense also nearly doubled, reaching more than 4,000 zhang, that is, nearly 30 miles.

Under the investigation of his divine sense, Yi Cheng soon discovered two demon beasts that were looking for him.

Although these demon beasts are extraordinary, except for those special existences, the divine consciousness of demon beasts is only about half that of human beings.

This may be a manifestation of the fairness of the Heavenly Dao, the demon beast has a long lifespan, but its cultivation is slow, and its physical body is strong, but its divine consciousness is fragile and its spiritual intelligence opens late.

Even if it is a mid-third-order demon beast, its divine sense can only be compared to before Yi Cheng's breakthrough, and now that Yi Cheng's divine sense is investigating, they still have nothing to detect.

Within the scope of his divine sense, Yi Cheng did not find the golden mouth eagle, but Yi Cheng knew that the golden mouth eagle of the Dao Dao was definitely not leaving, but guarding the entrance of the cave to prevent himself from escaping.

Now that his strength has increased greatly, Yi Cheng naturally has revenge and complaint, but he is not generous enough to let go of these demon beasts who almost took his life.