In this case, the aura is used as a "ignition agent", and it is the aura in the environment that is burned, as well as air molecules, or any matter present in the environment, which does not consume much of the alchemist's aura. If you have to describe this formation, it is somewhat like the reactor of modern civilization, only on a much smaller scale. The intrinsic energy present in ordinary matter is extracted through a precisely controlled formation to obtain the required high temperature.

The temperature and range of this kind of Danhuo can be precisely controlled by the formation method to achieve a very accurate degree, and it is said in the Danhuo Theory that an excellent alchemist can even accurately control the temperature of different parts in a small Dan furnace, and the temperature control range can be as small as the centimeter level. The specific control ability depends on the alchemist's feeling and control ability of the aura.

The advantages of the second type of Dan Fire are extremely tempting, but the difficulty is also quite high. Whether it is the method taught to him by Aunt Zhou, or the discussion of this kind of Danhuo in the Danhuo Theory, there is no detailed method for constructing the formation. In other words, for Tian Xu, this method only exists in theory, but lacks a practical cultivation path. Especially the formations involved, Tian Xu had no choice at all.

Tian Xu immediately liked this kind of formation Danhuo, and was very unwilling to give up it, he thought about it repeatedly for a long time, but he didn't have a clue. "Is there really no way?" Tian Xu asked to himself.

"Whether you can condense your own formation Danhuo depends on chance. Aunt Zhou's voice came from the side. When Tian Xu opened his eyes, he found that it was close to evening, and it had taken him nearly a day to think about it. Zhou Aiping, who was next to her, had already completed her healing after taking the Heavenly Bee Requiem Pill.

In Tian Xu's inquiring eyes, Zhou Aiping said: "Everyone has a different way of feeling and controlling aura. There are also differences in the specific methods of generating and controlling the Danhuo, so the methods of condensing the Danhuo are also different. Even if the same kind of exercise is cultivated, there are subtle differences between people, and the control requirements for Danhuo are extremely subtle, so the formations constructed will be different. We say that everyone has their own way, but this is also true. Otherwise, as long as you honestly accept the inheritance of the previous generation and practice step by step, everyone will be able to soar. ”

"What we mean by comprehension is actually to see if the cultivator can find his own way, and once he finds a method of controlling his spiritual qi that suits him, he will be able to make progress in his cultivation. When we cultivate, gathering qi is like this, and condensing pill is a sublimation of the ability to control the aura, which is equivalent to finding a higher level of our own path. As for what happens after the ascension, I haven't experienced it, and I don't have the right to speak, but I think the reason is the same. The same is true of this condensation fire. ”

Zhou Aiping spoke in simple terms, and Tian Xu immediately understood. But he still had doubts about the formation, so he asked: "I understand, but I don't understand this formation at all, it sounds very high-end and high-grade, what kind of existence is that formation?"

Zhou Aiping said: "I don't know the formation either, but over the years, I have been more or less exposed to some things about the formation, so I will tell you what I know." ”

She sorted out her thoughts for a moment and said, "What is the essence of our cultivation? In fact, it is the process of gathering and controlling aura. We gather the aura in the body, let it run along the meridians, or go further, condense and compress it, and form a golden pill, I don't know if you have thought about it, why the aura in our body doesn't escape by itself and disperse into the environment? This is actually a kind of formation that we have built to control the aura. In addition, when we were refining the pill, we also locked the aura in the pill with a formation. It can be said that in the cultivation world, formations are everywhere, but we don't notice their existence, let alone understand their principles. ”

Tian Xu nodded again and again when he heard this, what Aunt Zhou said caused reason, and he had actually thought of something. Especially when condensing pills and alchemy, the feeling of this formation is even clearer. It's just that the formation he used when condensing the pill was automatically generated by the Yin and Yang formula, and the formation method used during the alchemy was built inside the Nine Xuan Furnace, and he didn't figure out its fundamental principle.

At this time, Aunt Zhou continued: "When we usually control the aura, we operate directly through the mind to achieve the purpose of controlling the aura. If the trigger conditions for controlling the aura are fixed to form a stable form of aura combination, so that the aura can be controlled out of the manipulator and achieve the predetermined function, it is a formation. ”

"If we study the formations we see, we will find that most of these formations depend on some specific substances for their existence, and the formations are built on these substances, which we call 'arrays'. The formation that restricts the aura or golden pill in our body is to use our body or the meridians in the body as the array, and the formation we build when refining the pill is basically based on the residue of the elixir. Most of the special formations constructed by the formation mages use jade, array flags, etc. as the formation weapons, and some formations with relatively fixed positions are based on relatively fixed structures on the ground. In short, the formation weapon is the basis for the existence of the formation. ”

"Some seniors in the cultivation world have fixed some formations with typical functions, formed a relatively fixed formation construction method, and formed a formation inheritance of the best shape, and because of this, the special cultivation profession of formation mage has emerged. But in fact, most formation mages have only mastered the construction methods of certain formations, and they are not necessarily better than non-formation mages in terms of understanding the essence of formations. ”

"However, the formation we built to condense the Dan Fire was different from these common formations, it did not have a relatively fixed formation, and it could not exist independently without the control of the alchemist. Or it can be said that this Danhuo formation is built on the aura, and the aura is the formation weapon that constructs the formation. The array is not stable and requires constant control to exist. ”

"As I just said, this Dan Fire Formation also needs to be controlled uninterruptedly, so to maintain its existence, it also requires a relatively large amount of energy. But in fact, it doesn't take so much energy, why is that?"

Aunt Zhou looked at Tian Xu, who was listening to her attentively, and said, "You know, some auras have their own consciousness, such as the auras in those high-level elixirs. The Danhuo that we condensed with the formation is actually like this, with its own will. The will of this Danhuo is not as naughty as the will in the Heavenly Rank Divine Medicine, but it can assist us in controlling the Danhuo. Because this fire is condensed by ourselves, it is easier for us to communicate with it, and it is easier for it to accept our command, just like a pet. ”