This was Lufan's first close encounter with the cultivation of a Martial Cultivator, and it was quite shocking. At the same time, he understood why Martial Cultivators looked down on the meager energy found in Primordial Food.
There was an overwhelming amount of energy. In his perception, a vast quantity of Heaven and Earth Vital Energy was being drawn into this cave, fluctuating violently like the ebb and flow of tides, rhythmically pulsating with the breathing of the five individuals.
The five of them resembled giant beasts, their vital energy surging as they continuously inhaled and exhaled Heaven and Earth Vital Energy.
As they cultivated, with each breath, a large amount of Heaven and Earth Vital Energy surged into their bodies through their acupoints during inhalation, and during exhalation, the Heaven and Earth Vital Energy burst forth from their acupoints. What remained was transformed into their own Primordial Energy, which they then used to continuously refine their bodies.
This is the typical cultivation method of a Martial Cultivator. A Martial Cultivator draws upon the power of Heaven and Earth Vital Energy, transforming it into Primordial Energy, and then uses that Primordial Energy to repeatedly impact and refine their physical body—strengthening skin, flesh, blood, and bones—from the outside in, step by step enhancing their physical form to possess immense strength.
Primordial Energy is similar to internal energy but is much more violent and destructive.
For a Martial Cultivator, Primordial Energy is as important as the physical body itself. A stronger body can accommodate more Primordial Energy, and more Primordial Energy can rapidly strengthen the body; the two are complementary and indispensable.
Lufan carefully observed and felt the cultivation of the Martial Cultivators up close. This was a rare experience that would greatly benefit his future cultivation and improvements to his techniques.
Heaven and Earth Vital Energy is a peculiar type of energy that is invisible to the naked eye yet omnipresent. It is constantly changing, only perceptible when one is cultivating with an ethereal mindset. Now, through Lufan's perception, he could observe the cultivation conditions of everyone.
In his perception, while all five were cultivating with considerable movement and sound, there were differences in how much Heaven and Earth Vital Energy each could draw upon.
Among them, Duanmu Xue drew the most Heaven and Earth Vital Energy—almost double that of the other four. The three—Yanshi, Zhao Xingjian, and Milan—were similar in their abilities, while Miko's was comparatively weaker.
Clearly, on the surface, Duanmu Xue appears to be the strongest, while Miko seems to be the weakest.
Of course, the term "strength" here purely refers to cultivation level and not combat power. After all, many factors influence a person's combat ability, such as techniques, weapons, mindset, and environment. Cultivation level is not the only standard for measuring a person's strength; in some special circumstances, a Level Jump Challenge is not impossible.
However, in most cases, people still use cultivation level to gauge a person's strength, as those who can perform a Level Jump Challenge are still quite rare.
Lufan was calculating the amount of Heaven and Earth Vital Energy they breathed in each time to determine their refining efficiency. In the end, he discovered that Duanmu Xue and the others breathed in almost the same amount of Heaven and Earth Vital Energy each time, with a difference of no more than one percent!
Not even one in a hundred! The refining efficiency of Duanmu Xue and their group was surprisingly less than one percent, which completely exceeded Lufan's expectations. This efficiency was simply too low!
Yes, it was too low. Comparing it to the numerous Inner Strength Cultivation Methods in his mind, Lufan found that those Inner Strength Cultivation Methods were much more powerful in terms of energy refining efficiency than what Duanmu Xue and the others practiced. Especially the Northern Darkness Divine Skill that Lufan had improved, which could achieve nearly one hundred percent refining efficiency!
It sounded great, but unfortunately, it was of no real use.
Lufan had already experimented with the Inner Strength Cultivation Methods stored in his memory; they simply could not harness the Heaven and Earth Vital Energy of this world because it was too explosive. A careless mistake could lead to losing control. Moreover, Lufan was also rejected by the world and could not absorb Heaven and Earth Vital Energy at all.
So why could the Northern Darkness Divine Skill refine the energy within Primordial Food? Lufan had already studied this; he could not refine Heaven and Earth Vital Energy because the energy from the Void contained the will and rules of this world, fundamentally rejecting him as an outsider.
In contrast, the energy in food had already been refined by plants or animals themselves. It resembled a type of energy akin to Martial Cultivator's Primordial Energy and did not contain the original world's will, allowing Lufan to refine it.
However, this also revealed a hint of mystery to Lufan. He understood why Duanmu Xue and the others looked at him earlier; they merely thought that there was too little Primordial Energy in the Primordial Food for any meaningful cultivation prospects.
Indeed, after witnessing their movements and momentum during cultivation, even Lufan shared that sentiment. But now it seemed that the situation was not as he had imagined.
Although Duanmu Xue and the others absorb an astonishing amount of Heaven and Earth Vital Energy during their cultivation, their refining efficiency is not high. In contrast, Lufan, who possesses the Northern Darkness Divine Skill, has an almost one hundred percent refining efficiency. When comparing the two, despite the gap still existing, it is not as significant as one might imagine.
This is still under the condition that Lufan is using ordinary Primordial Food. If Lufan could obtain higher-grade Primordial Food, then the gap between them could be further narrowed, or even surpassed!
Thinking of this made Lufan feel a bit excited. If his refining of Primordial Energy could exceed that of Duanmu Xue and the others, it would mean that his cultivation speed would also surpass theirs, and his strength would gradually catch up.
This is crucial for Lufan. To escape the shadow of death, he needs to quickly enhance his strength while also acquiring sufficient resources. One effective method to obtain enough resources is to demonstrate enough talent and potential. At that point, countless people would want to cultivate him, and resources would naturally flow in.
To stand out among his peers and showcase his potential, the super refining efficiency of the Northern Darkness Divine Skill undoubtedly enables this.
Of course, this is predicated on the fact that the cultivation methods in this world are indeed like those of Duanmu Xue and the others, with generally low refining efficiency; otherwise, it would all be mere fantasy.
At the same time, Lufan remains deeply vigilant. The refining effect of the Northern Darkness Divine Skill is incredibly extraordinary. He did not realize this before due to a lack of comparison, but now he understands that he can no longer reveal any information regarding this Mind Technique. Everything must be attributed to his talent; otherwise, he might find himself in serious trouble.
In fact, what Lufan does not know is that in this world, cultivation methods that can improve the refining efficiency of Heaven and Earth Vital Energy are extremely precious. If others were to learn about the effects of the Northern Darkness Divine Skill, most Martial Cultivators would come rushing to seize it at all costs. As the owner of such a technique, Lufan's fate would undoubtedly be quite tragic.
Fortunately, he has discovered this issue in time. Currently, no one knows his secret; as long as he remains cautious in the future, it will not be so easy for others to uncover it.
Lufan observed for a while longer and noticed that they had no intention of ending their cultivation session nor any other special matters to attend to. Therefore, he stopped paying attention to them and took this opportunity to focus on himself.
With the Iron Cloth Technique breaking through to Copper Skin Realm, his physical strength has greatly increased. Perhaps it is time for him to start learning some other martial arts techniques, Lufan pondered.
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