Eliminate the distracting thoughts in the heart, gather the mind in the sea of knowledge of the eyebrows, the treasure wheel of the avenue rises and falls in the spiritual power, hangs down a wisp of Xuanhuang gas, and the texture of the Tao rhyme converges, deducing thousands of visions.

With Hua Yu's continuous cultivation and cultivation of spiritual power and his own Dao rhyme these days, the Dao rhyme on the natal treasure wheel has become more intense, compared to when it was just refined, it is obvious that both the power and the Dao contained in it have reached a higher level.

As soon as his mind moved, a wisp of Xuanhuang Qi fell from the natal treasure wheel, simulating the appearance and weather of the Dantian Qi Sea.

The simulated Qi Sea True Yuan quickly outlined an infinite number of spell runes, which were intricately arranged and combined to form a model of the Dan furnace.

This Dan furnace is composed of two parts: the furnace body and the furnace lid, the furnace body has three legs and two ears, the whole is spherical, the furnace lid is like the lid of the incense burner, and there are some holes distributed. The whole Dan furnace looks very good, but there are still many places in this Dan furnace that are not harmonious and mellow.

"Whew... Finally there is a look".

Hua Yu looked at this simulated Dan furnace and sighed with satisfaction.

Fortunately, Hua Yu was born in a top sect such as Taixuanzong, and his foundation for various cultivation paths was extremely solid. Whether it is the way of the basic sigil or the way of the basic spell, it has a solid foundation.

Moreover, Hua Yu is different from others, not only has he learned all kinds of basic spells, but also carefully studied the creation codex of many basic spells, and understood the creation principle, creation process, and later improvement of each even the most basic spell.

Although he may have learned relatively few basic spells in the same batch of disciples, few people can match him in terms of understanding and mastering all the basic spells he has learned.

Therefore, although it is difficult to create a spell alone, it is not completely impossible, and the biggest difficulty in creating a spell is the fear of spell backlash, a spell backlash, the light one needs to cultivate for a long time to heal, and the heavy one may directly lead to the confusion of the natal true element and damage the foundation of cultivation.

However, Hua Yu has the cheating device of the natal treasure wheel, and this biggest difficulty has become the easiest, without directly studying experimental spells in the dantian qi sea, then naturally there is no saying that spells will be devoured.

Moreover, in the sea of knowledge, the Xuanhuang simulation does not need to consume the natal true element, only a small amount of spiritual power is consumed, and it can support Huayu's long-term experimental research. This is equivalent to turning disadvantages into advantages, as long as you insist on a large amount of research, then it will definitely be possible, which Hua Yu is extremely sure of.

"It is definitely not wrong to focus on fire, but in order to meet the various requirements of alchemy, then not only fire should be considered, but other aspects ......."

Hua Yu continued to experiment with the properties of this Dan furnace, and now the main body of this Dan furnace is composed of fire, but if you want to meet the needs of alchemy, you will definitely not be able to do it with fire alone, and you also need other attributes to cooperate.

Moreover, there are many kinds of fire alone, yang fire, yin fire, earth fire, cold fire, thunder fire, etc., different alchemy materials need different flames to process and refine, so there are too many things involved in a small Dan furnace.

But it's impossible to include all of these attributes, and it's an impossible project to think about.

For this reason, Hua Yu had to refer to the examples of alchemy furnaces in another world, the most famous of which was the Bagua furnace of Taishang Laojun.

Legend has it that there are eight kinds of power in the Bagua furnace: Qian, Kun, Zhen, Dui, Kan, Li, Gen, and Xun, and relying on the power of these eight Bagua Furnaces, they can combine and evolve thousands of attributes, which is a typical way to reproduce with simplicity.

With only eight simple attributes, thousands of attributes can be evolved, and the road is simple.

Although there is no gossip in this world, this kind of thinking can be used for reference, and the five elements of yin and yang in this world can also be combined to evolve all things in heaven and earth.

And there is no gossip, then I can let him have it, and the knowledge and knowledge of the other world is his biggest golden finger.

...

In the end, Hua Yu did not use the Bagua Theory or the Five Elements of Yin and Yang, but chose the foundation of Taixuanzong, that is, the way of the four spirits of earth, water, wind, and fire, as the theoretical basis of the alchemy furnace.

The ancestor of Taixuanzong, Lingji Zhenren, studied the way of creation based on the four spirits of earth, water, wind, and fire, so the various avenues and spells of Taixuanzong were founded on the basis of the four spirits of earth, water, wind, and fire.

The path of the four spirits of earth, water, wind, and fire, and the path of the five elements of metal, wood, water, fire, and earth belong to two different systems, and they expound different worldviews from different directions to the origin of the world.

The Tao of the Five Elements believes that the world is composed of the most basic five elements: metal, wood, water, fire, and earth, and that the development and change of various things and phenomena in the universe (including human beings) are the result of the continuous movement and interaction of these five different attributes of matter.

Of course, the theory of the Five Elements is not only one, but from different directions and angles, different practitioners have their own understanding of the Five Elements Path.

Some people think that the five elements refer to the five basic elements, some people think that the five elements refer to the five attributes in general, and some people think that the five elements refer to the rise and fall of all things, just like the division of the year into five elements and five seasons, with wood as the birth, fire as the prosperity, water as the end, and so on, there are too many theories.

The same is true of the path of the four spirits, which divides the origin of the world into four kinds from another perspective: earth, water, wind, and fire, where:

Earth, which represents something tangible and qualitative;

Water, which represents something intangible and substantial;

wind, which represents something formless and insubstantial;

Fire represents something tangible and insubstantial.

Of course, different people have different understandings of the way of the four spirits, for example, some people regard the four spirits of earth, water, wind, and fire as the four most basic things that constitute the world, and some people think that the four spirits are the four most basic attributes of earth, water, wind, and fire.

...

Hua Yu chose to take the four spirits of earth, water, wind, and fire as the theoretical foundation of the Dan furnace, and the reason was naturally obvious, Taixuanzong was based on it, and Hua Yu had no reason not to take advantage of such a great convenience.

This choice is not only convenient in the early stage, but also in the later stage, the more you can use the huge foundation of the sect, and the research accumulation of the sect for so many years and generations is the supreme food that can quickly promote the progress of alchemy.

"Yes, that's it, that's it."

After thinking everything through, Hua Yu slowly added three other attributes on the basis of the original fire genus of the Dan furnace. Of course, at present, Hua Yu can only regard the four attributes as the most basic four attributes: earth, water, wind, and fire, and as for the other levels, they are not what he can touch in this realm now.

Slowly, the model of the Dan furnace became different, the four forces were together, with the fire genus as the main one, and the four attributes worked together.

"Bang..."

"Failed again, it seems that it is really not easy to fuse these four forces perfectly, this ......."

"Bang..."

"Well, this spell sigil was not chosen correctly, change it again, this ......."

"Bump..."

"Failed again, hey, yes! You can refer to the basic four spirit formation, isn't this basic formation the use of the power of the four spirit attributes?"

"Bang..."

"Still not right, what's the problem?"

"Bang..."

The sound of experimental failure kept coming out, but Hua Yu kept persisting, constantly studying various plans, and constantly discovering various problems, and the prototype of the Dan furnace was slowly perfecting and forming.

"Whew..."Hua Yu opened his eyes and let out a long breath, "Take your time!