After some training in the cave, Li Yun slowly breathed a sigh of relief, but the excitement on his face could no longer be concealed.

Then after moving the muscles and bones in his body, he once again entered a state of cross-sitting, closed his eyes, and slowly integrated all his strength into his body

Even with your eyes closed, you can still see what is happening around you, which is a unique skill that you can only have after breaking through level 40. Every time a cultivator's level becomes more and more powerful, the more obvious his understanding of his body and the situation around him becomes.

At this time, the personnel were engrossed in compressing all their strength to the vicinity of their dantian.

Mass after mass of soul power was constantly circling in his dantian, and there seemed to be layer after layer on the outside of this place.

Although level 39 and level 40 are two levels, they are just a little different, but the energy after breaking through seems to have increased several times, and if you compare the two, they are simply different, and there is no comparison.

Li Yun silently concentrated, constantly controlling the mass of energy in the dantian, quickly separating the energy and absorbing it continuously.

Then his eyes widened suddenly, and all the power seemed to burst out again and again in the void, and after hovering for a few seconds, he gradually returned to the position of Litian again.

Opening his mouth, everything in front of him seemed to have produced irresistible factors for him, and after the continuous collision, these forces finally slowly entered his meridians, and his whole body, even all the bones and muscles began to make a sound of being blown apart After a painful struggle, Li Yun slowly calmed down.

"Great, it's finally succeeded, and your luck is okay, it only took one time to reach this state, it's really beyond my expectations!" The teacher's voice rang out again in the cave.

"Teacher, can't you praise me? Don't you think your apprentice is particularly good? It only took one time to complete the breakthrough, and all the strength has been compressed to the extreme, in this level the promotion can play the greatest role, not only the factor of luck, I still think that the factor of strength accounts for a lot, and I have now broken through level 40, should I be given some advanced mental methods to practice"!

The teacher heard this immodest look, pouted, turned to look in the direction of the cave, and continued.

"You are so anxious when you just broke through, what kind of internal strength do you want to learn?"

"Of course, the higher the level, the better, and haven't you ever had it before, there is an internal strength method, which is so powerful that people can't believe it, and it can even have the possibility of evolution"!

After hearing these words, the teacher silently paid attention to Li Yun in front of him, looked thoughtful, and then slowly continued something?

"What's going on? Could it be that the words you talked to me before were all to coax me?

"As a teacher, how can you lie to this fart child, you really don't know what to do, it's just that this step of internal strength, although after successful cultivation, your level and abilities in all aspects may be mostly improved, but this cultivation also has a very high risk, once you fail, then ......" Alas, the teacher at this time sighed, and seemed to have some regrets.

And after seeing the teacher's current living state, Li Yun also felt it in his heart at this time, and he was a little puzzled, what was going on?

"What happens if I fail to cultivate?"

Li Yun asked silently.

"Actually, I don't dare what will happen, but there will definitely be no good results, because in the past, although I have heard such a mental method, there are also some obedient possibilities, but since ancient times, no one has seen with their own eyes the person who has successfully cultivated this mental method, and I have lived for so many years, after so many experiences, according to my current situation to speculate on him, although this step of the mental method can be cultivated, but it can be cultivated to the peak moment, the success rate of the perfect breakthrough is really special, and I estimate that the probability is only no more than thirty percent”！

"Oh my, no!"

When he got here, the teacher also nodded helplessly, as if he had something on his mind.

"I'm afraid that my 30% chance just now is already a very optimistic attitude, if I really make a breakthrough, there will be a lower chance of success"!

After hearing such words, Li Yun also had some thoughts about the difficulties, but the curiosity in his heart still dealt with himself and continued to ask, because there are too many aspects of this martial arts mental method that can help him improve, and it is simply a challenge that he cannot resist.

"So what do you need to pay attention to when cultivating this internal martial arts, or what kind of elixir do you need to assist in order to be able to cultivate?"

After hearing such a question, the teacher hesitated slightly, thought to himself, and then continued.

"This martial arts heart method and internal strength heart method two books are complementary to each other, if you want to practice, you can do it anytime and anywhere, but it is very difficult to break through and absorb, and once when I had nine flavors of true fire with you, if you want to make a breakthrough, the taste of wine life is a must have, otherwise it is useless to cultivate to the peak, and this internal strength heart method is also in the coincidence I only obtained it so far I don't have the courage to practice him"!

When he thought of this, the teacher seemed to think of some of the past events that had happened, and the expression on his face began to gradually become very complicated, when he first got these internal exercises, it seemed that he had also experienced a lot of twists and turns, and only then did he have these achievements, and according to the tone he had just said, Li Yun seemed to be able to hear it in his heart, it seemed that if this exercise was trained, it would definitely not be so simple, and the nine flavors of the true fire of the teacher should also be something that could not be encountered.