Since Yu Ran broke through to the ninth order of spiritual energy, he has slowly retreated from the state of crazy cultivation during that time, and the speed of cultivation has slowed down a lot. Yu Ran knows that you can't rush everything, cultivation is important, but at the same time, you must also learn to control yourself a degree, otherwise it will be easy to overflow when the water is full, and the moon will be lost. In that way, it will be harmful to one's own cultivation.

Therefore, in the next day or two, Yu Ran's cultivation also became a lot easier. I also had more time to comprehend the essence of the mountain crack, and the comprehension of the past few days has made Yu Ran's mastery of this spiritual technique a lot better.

......

"Drink!"

Yu Ran unfolded a whole set of mountain cracks, and the movements were like flowing clouds, very smooth. If there were people from the Yu family watching here at this time, they would not help but applaud him.

It had only been a few months since Yu Ran had obtained this spiritual technique, and he had actually refined the entire Yu family, which had been unable to successfully cultivate for decades, except for the previous generation of family masters!

It can be seen from this that Yu Ran also has a lot of talent in the cultivation of spiritual skills.

Of course, Yu Ran's ability to successfully cultivate the Collapse Mountain Crack was not only due to his extraordinary talent, but more importantly, he had the spirit of hard work and perseverance.

Judging from the cultivation of the mountain split, Yu Ran obviously has this kind of spirit.

After casting a complete set of mountain cracks, although the power has become much stronger, he is only a ninth-order spiritual qi cultivator, and a complete set of spiritual skills is also a little exhausted.

But Yu Ran didn't stop because of exhaustion, he sat cross-legged and sat down, recalling in his mind every movement in the mountain cracking that he had just performed, so as to summarize his shortcomings.

Only by summing up again and again, recognizing one's own shortcomings, rather than blindly evading, can it be possible to cultivate it to the extreme!

However, Yu Ran's cultivation on this seems to have encountered a bottleneck.

After thinking about it, Yu Ran found a few more mistakes, combined with the notes on the spiritual skill codex, plus some of his own insights, he also made a lot of gains. But there is always a feeling of non-existence that lingers in my heart, lingering, but I don't know what it is.

And now there is not a lot of time left for the family ratio, and the time is very short. Although Yu Ran's current strength is already very good for the entire family. However, along the way of cultivation, you never know where you will stop, all you can do is to keep pursuing, so that it is possible to break through one bottleneck after another, and it is possible to go further.

On this day, Yu Ran continued to flip through the codex left by his predecessors after cultivating this spiritual technique, hoping to find some 7 useful information in it.

Suddenly, when he turned to a certain page of the codex, he noticed a line of small characters that are not usually easy to find, and he didn't know which predecessor left it, which read: Cultivating the mountain crack, if you use spiritual power as the guide to quench the bone and refine the body, you can cultivate the mountain collapse. However, the process of operation of this method is very painful, and it requires great perseverance. In addition, those who cultivate the strength of the mountain collapse can reach the peak of the mountain collapse!

Yu Ran looked at this line of small words and thought to himself: Collapse Mountain Jin, what is this?

But when I saw what the small print said, as long as you cultivate the strength of the mountain collapse, you can cultivate the mountain crack to the fullest!

No matter what, as long as it's helpful for cultivation, it doesn't hurt to try! As for the process of cultivating the mountain strength by quenching the bones and refining the body mentioned above, it is very painful, and Yu Ran doesn't care much about this, how can there be a free lunch in this world. Besides, it seems that he has encountered a bottleneck in the cultivation of this spiritual technique, and maybe this can be regarded as a kind of training for himself.

Therefore, Yu Ran did not hesitate too much about the matter of cultivating the mountain collapse strength.

......

"Drink!"

Yu Ran looked at the small words on the codex again, exhaled deeply, sat cross-legged, and began to slowly mobilize his spiritual power, and then cooperated with the collapse of the mountain crack, impacting his bones and meridians little by little.

At first, after running for a few small weeks, I didn't notice anything different. But as the number of runs increased, the speed became a little faster, and gradually, a slight feeling of pain came from Yu Ran's body.

"Crackle!"

When Yu Ran activated his spiritual power again, his bones made a sound, and the pain worsened again. Yu Ran knew that the real spiritual power bone refining had begun!

The moment the spiritual power seeped into the bones, Yu Ran's face instantly turned pale, and the pain hit him in bursts, and his teeth clenched in pain, making a creaking sound.

Under such pain, Yu Ran continued to grit his teeth and insist, and wrote in that line of small letters, those who have great perseverance can succeed!

But this method of cultivating the Avalanche Mountain Strength was too painful, so that De Yu Ran could not maintain his previous posture. The spiritual power continued to work, refining every inch of his body. His arms wrapped around his body, and he collapsed to the ground, his whole body curled up together, like a born baby, resisting and enduring the sharp pain coming from his body. However, there was a very painful expression on his face, which was self-evident.

This kind of inhuman torture lasted for a long time before it gradually subsided, but at this time, Yu Ran had been tossed by that kind of pain and didn't feel it, but from the sweat flowing wantonly on his face, it could be seen what kind of pain he had experienced before.

As the last trace of pain dissipated, Yu Ran slowly calmed down from that state where life was worse than death. He gasped for a few breaths, and at this time he had no strength left, so he could only collapse to the ground weakly.

As he collapsed on the ground, there was a slight tingling sensation in his bones, which made him tremble. He felt something, into the depths of his bones, but then disappeared again.

"Collapse the mountain?"

Yu Ran's heart was shocked, could it be that this is the so-called mountain collapse power? Yu Ran's mind moved, and from the depths of that bone, a trace of power different from spiritual power was mobilized by him.

Really!

This power is only a little now, it seems to be nothing, but Yu Ran can't deny the powerful power contained in it, if this mountain collapse force is put into operation, that kind of power, Yu Ran doesn't need to think about it to know.

Yu Ran was ecstatic, his sin was not in vain, if it was really according to what was recorded on the predecessor in the codex, as long as he cultivated the strength of the mountain collapse, then he would be just around the corner!

Thinking that his collapse and cracks are expected to be successful, Yu Ran's heart can't hide his excitement!