In the cave, Chu Ling crossed his knees, and his whole mind was immersed in the Saint Yuan Heart Scripture.

Cultivating spiritual power, like martial arts cultivation, also requires corresponding mental methods. In the first two realms, you can rely on your own talent to break through on your own, but when your spiritual power breaks through to the third grade, if you don't have a special mental method, it is wishful thinking to want to improve your grade.

Compared with the martial arts method, the mental method of cultivating spiritual power is even more precious. After all, in this world, people with spiritual talents are extremely rare, so the mental method or exercise method for cultivating spiritual power is extremely rare. This is also the reason why many people choose to cultivate a single vein in the Xuan Pattern. Because the level of the spiritual power and mental method they practiced was too low.

Strictly speaking, those so-called five-grade vessel pattern masters, Dan pattern masters, if they are divided according to the level of the real Xuan pattern master, then their grade will be at least one or two grades.

For example, the five-grade Dan pattern master who fell into the ancient royal family's worship, he can only carve the five-grade Dan pattern, if he is asked to carve the formation pattern or war pattern, I am afraid that he will not even be able to reach the third grade.

The difficulty of carving war patterns and formation patterns is far greater than that of Dan patterns. Among all the types of patterns, the easiest to engrave is the vessel pattern. Because the carrier of the bearer pattern is enough as long as the corresponding quality is achieved. There are the least number of factors to consider when engraving. Unlike war paints, changes in the human body need to be considered, or formation patterns need to build a Xuan array node.

Therefore, to a certain extent, the Holy Yuan Heart Code is more precious than the Emperor Demon Heavenly Law.

Chu Ling's eyes were closed, and the spiritual power in the sea began to operate in the way recorded in the Shengyuan Heart Codex. After a moment, he felt as if there was a strange wave rippling out of his veins. That kind of fluctuation gradually spread all over the body, and finally surged to the sea of knowledge like a tide, and then it seemed to have a strange resonance with the crystal seedling. An indescribable mysterious fluctuation quietly emanated from Chu Ling's body.

That spiritual seedling seemed to have some kind of spirituality, and it was as close as one with Chu Ling's mind. In his spiritual holy veins, a trace of mysterious silk threads that were invisible to the naked eye spread out, connecting with the spiritual seedlings.

What Chu Ling didn't know was that from this moment on, there was no turning back. Once he attacked the Danhai Realm and couldn't successfully communicate with the Nine Heavens Star and the Nine Demon Seas at the same time, then he would have only one way to fall.

Opening his eyes, Chu Ling's eyes flashed with a dazzling light, and a trace of excitement lifted up slightly at the corner of his lips. Now, he wasn't sure how strong his spiritual power was, but Chu Ling had an inexplicable confidence. If he is asked to arrange a Xuanwen formation in the early stage of the third grade now, I am afraid it will not be too laborious at all.

"The cultivation of spiritual power seems to be easier than the cultivation of martial arts. Chu Ling scratched his head, the smooth breakthrough of the spiritual realm, as well as the cultivation of this Saint Yuan Heart Scripture, made him feel this way.

Of course, this is naturally what Chu Ling himself thinks. If Ayabuchi heard this, he might just slap him in the face. When she broke through to the third-grade Xuanwen Master, it took several years. Who dares to say in front of her that spiritual power is easier to cultivate than Xuanli?

Where did Chu Ling know that the reason why he was ahead of martial arts cultivation in terms of spiritual power was because of the first two realms of spiritual power, the most important thing was personal talent and qualification.

As long as you have strong spiritual power, it will be much easier to break through than martial arts. And he was carrying the spiritual holy vein of the Xuanxin Heavenly Maiden clan, and his spiritual power was naturally extremely strong, and it was naturally extremely easy to break through the first two realms. However, starting from the third grade, this speed will drop sharply, but Chu Ling doesn't know it now.

Gently shaking his head, which was still a little painful, Chu Ling's mind began to turn to the stacking method. The cultivation of the Saint Yuan Heart Codex, he has now started, and the rest is to practice step by step, so naturally there is no need to worry. And the stacking method is related to whether he can improve the quality of the demon Jiao bone. So he decided to retreat for a period of time in this cave and concentrate on cultivation.

He has now broken through to the primary level of the third grade, and can carve the pattern of the primary grade of the third grade, according to the stacking method, based on it, it needs to be stacked twice before it can be upgraded to the intermediate level of the third grade. Then the number of stacks doubled. In other words, he needed to stack sixty-four times before he could raise a third-grade primary vessel to the point of a fifth-grade primary vessel. And if one of them fails, then it will collapse completely, and you will have to start over. The difficulty can be imagined.

In particular, the fierce aura of the demon Jiao bone itself is too heavy, and the Xuan Pattern of the instrument below the fourth grade cannot withstand it at all. In other words, once Chu Ling started to portray, he had to superimpose the quality of that battle pattern at least to the fourth grade in one go, and then he could stop temporarily.

Therefore, Chu Ling must be proficient in this stacking method before he can start to do it.

And for the next period of time, Chu Ling was completely immersed in cultivation, forgetting the concept of time.

In the outside world, seeing Chu Ling retreating and cultivating, the master of the Martial Pavilion also let it go, and did not move him out.

...........................

"Peng!"

The huge force smashed the boulder at the mouth of the cave, and then a young figure stepped out of it.

The warm sunlight sprinkled down on his head, bathing Chu Ling's body, creating a gorgeous and blurry halo. This was the first time Chu Ling had walked out of the cave in three months.

After three months of retreat and cultivation, Chu Ling's entire temperament has undergone some changes. In the bewitching face, that demonic aura still exists, but there is an extra taste of holiness. These two temperaments, which should have been incompatible, were mixed in Chu Ling's body, not only did not have the slightest sense of peacekeeping, but instead made him exude a strange and unique charm.

With his palm on his forehead, Chu Ling adapted to the long-lost sunshine outside, and then stretched his waist fiercely, and a bright clean smile swayed at the corner of his lips.

After three months of cultivation, he was quite satisfied with the results. Martial Dao cultivation has reached the critical point of the Xuanlun Sevenfold, and it is only one step away from breaking through. The cultivation of spiritual power has also made great progress, and it has been completely stabilized in the realm of the primary level of the third grade.

And it is worth mentioning that just yesterday, he finally succeeded in superimposing the third-grade primary Xuanwen eight times in one breath, and improved it to the quality of the fourth-grade primary.

However, he didn't do it by hand to engrave it on the demon bone. Because the real pattern of the vessel to be carved needs some other materials to assist. And that kind of material, Chu Ling doesn't have it in his hand now.

"It's time to get out of here. Chu Ling moved his body for a moment, and then shook his head a little depressedly. Now he is just starting to think about ways to leave. The mysterious man didn't tell him how to leave this demon realm.

However, just as this thought had just risen in Chu Ling's heart, the void in front of him was suddenly torn out of a spatial crack without warning.

"Oh?" Chu Ling smiled when he saw this, and immediately didn't hesitate too much, and as soon as his body moved, he swept into it.