It was another cold morning, and a thin layer of white frost rose on the ground, which looked like the finest white satin from a cloth village, on which a few naughty children bounced and bounced, leaving a series of small footprints.

I went to the side hall for several days in a row, and under Xun Lao's explanation, Ye Yinan benefited a lot, and his understanding of Dandao deepened more and more.

Originally, the elixir was also divided into grades, which could be divided into nine orders, the first to fourth orders were elixirs, the fifth to seventh orders were elixirs, and the eighth to ninth orders were holy pills.

However, whether it is a spirit pill or an elixir, even if it is the refining of a holy pill, there are roughly three steps, liquid, melt and condensation.

Quite simply, the so-called chemical liquid is to refine medicinal materials into medicinal liquid.

Melting liquid is the most difficult and critical step, Xun Lao also emphasized here many times when teaching, at this time, it is necessary to integrate the liquid medicine extracted from many medicinal materials, and due to the different properties of each medicinal liquid, the requirements for fire temperature in the fusion process are constantly changing, if there is a small fork, all the previous efforts will be in vain.

Ning Dan, as the name suggests, can be done by condensing the fused liquid medicine into Dan.

"Before administering the medicine, send the soul power into the Dan furnace and feel the temperature in the furnace ......"

"The temperature is not static when fusing the medicinal liquid, and the soul power must sense the changes of the medicinal liquid at any time, and control the size of the Danhuo according to it......

“......”

Xun Lao's explanation on it looks like an old professor in his previous life, in Ye Yinan's eyes, those theories are easy to understand, but for others, they have not received any education, and many of them don't even know a few big characters.

Soon, today's teaching ended here, Xun Lao tightened the white robe on his body, drank the hot tea on the table, got up and left, Ye Yinan hurriedly chased him out when he saw this.

"Elder Xun, after listening to your lecture, the kid has some humble opinions, please listen to if there is anything wrong. ”

Xun Lao stopped, turned to look at the person who came, recognized Ye Yinan, patted him on the shoulder and smiled: "It turned out to be you, let's hear it." ”

Ye Yinan thought back to the flash of aura in Fang Cai's mind, and said: "The kid thinks that the most important thing in this alchemy is the temperature of the Dan fire when the second step is melted, and the fire temperature needs to change constantly, like a smooth curve. ”

Xun Lao was a little interested, but he didn't quite understand what he meant, and asked suspiciously, "What is smooth...... Curves?"

Ye Yinan thought about it, simply folded a thin branch on the small tree next to him, squatted down and drew quickly on the ground, and after a while, a quadrant diagram appeared on the ground, he explained: "That's probably what it means, the horizontal line represents time, the vertical line represents the temperature of the fire, and the melting liquid is more like drawing a curve to control the temperature of the fire over time." ”

Xun Lao's eyes kept flashing with thought, and said: "Your statement is very novel, and it is the first time I have heard of it. ”

He paused and reminded: "However, the old decay believes that all changes are inseparable from its sect, and the most fundamental thing in all this is soul power! Soul power often determines the upper limit of an alchemist, just take the old decay as an example, it is impossible to refine the third-order spirit pill, because in the refining process, the soul power of the old decay will be exhausted if it cannot support the Ning Dan at all." ”

Ye Yinan thought about it, and he was right, what he said was just a theory, and he still couldn't avoid his soul power if he actually wanted to control the change in fire temperature, and arched his hand: "Thank you for your teachings." ”

The fish in the pond have surfaced, and it has rained.

This rain came very suddenly, one drop, two drops...... The wet spots on the ground became denser and denser, and the people hurriedly went to the house to collect the hides hanging in the courtyard.

In the alchemy workshop, Ye Yinan sat on an old seat, in front of him was an ordinary black furnace, with a bamboo basket on the left and right, one containing medicinal herbs, and the other containing a pile of goose-yellow stones of different shapes and several small bottles.

The medicinal materials are used to refine the Hui Yuan Dan, the goose yellow stone is the Yuan stone, and the small bottle contains the burning Yuan medicine, which he moved back with Xun Lao.

After returning from the land of the Northern Evil, he didn't dare to take out the Sumeru ring swaggeringly and put things in it, he was not guilty, and he was guilty, in case he let others know that he had obtained the Dao Rank Exercises, I was afraid that it would cause a bloody storm.

Ye Yinan took out a jade slip and placed it horizontally on his forehead, and the sea of knowledge instantly poured into the Danfang of Hui Yuan Dan.

After he finished discussing with Xun Lao, the latter actually took him directly to the alchemy workshop, and handed over the Danfang to him, saying that he wanted him to practice.

In another room, Xun Laoan sat behind the Dan furnace, but he did not open the furnace for alchemy, but threw his soul power into Ye Yinan's side.

When he saw that Ye Yinan was about to start the first alchemy after counting, he stroked his beard and smiled triumphantly, it seemed that there was some conspiracy.

However, Ye Yinan didn't know anything, he took a deep breath and whispered to himself: "Hui Yuan Dan, it is considered a relatively low-level first-order pill, it shouldn't be that difficult." ”

With that, he first threw a piece of yuan stone into the Dan furnace, and then took some red powder from the vial and sprinkled it on the yuan stone through the opening in the top of the furnace.

Puff puff......

It was as if a dry pyre had jumped into the spark, and the Yuan Stone was instantly ignited, and the constantly beating fire in the Dan furnace could be clearly seen.

Gradually, Ye Yinan could feel the warmth coming from the Dan furnace in front of him, and he controlled a soul power to drill into the Dan furnace.

"Shhh

An unbearable pain came to Zhihai out of thin air, and the pain made him gasp, and he quickly took back his soul power, and he could see that this soul power had obviously become more transparent.

This kind of pain is different from the pain of the flesh and skin, but a pain that penetrates deep into the soul, as if his soul is burned on a fire, but the soul power is connected to the sea of knowledge, and it is indeed equivalent to burning the soul with Dan fire just now.

"Hahaha, if you want to step into the Dan Dao, you must first refine your soul, otherwise your soul power will not even be able to enter the Dan Furnace, so how can you talk about alchemy? The old man Xun laughed in his ears, and the old man thought it was very funny when he saw that the junior was deflated.

Ye Yinan rubbed his hot eyebrows, even Zhihai spasmed at that moment just now, but he didn't know if it was an illusion, he felt that the soul in Zhihai seemed to be stronger than before.

No wonder Xun Lao has been emphasizing soul power, this soul power is weak, I am afraid that he will not even be able to cross the threshold.

"The kid was taught!"

This time, he accepted all his contempt, and his gaze at the Dan Furnace gradually became resolute.

"Hiss......"

"Uh......"

"It hurts!"

“......”

In the following days, Ye Yinan seemed to be on a par with Danhuo, and he had to go to the alchemy workshop every day to burn himself.

Not surprisingly, every time there was a lot of screaming, so that some timid maids hid far away when they passed by, thinking that the alchemist was abusing someone.

Seeing him so persistent, Xun Lao couldn't help but admire in his heart, this kid is really ruthless to himself, but with such great perseverance, can't An succeed?

Ye Yinan didn't think about it so much, he just felt that wouldn't it be beautiful if the elixir and even the holy pill needed by the Futu Holy Body could be produced and sold by themselves in the future!

When the Futu Holy Body decided to open up the first meridian in the ascetic realm, it needed the first-order elixir Baihong Pill, and it was not difficult to guess what kind of pill would be needed in the later realms.

The emperor lived up to his wishes, and finally, after nearly a month of torture, Ye Yinan's soul power could finally stay in the Dan furnace.

The illusory soul in the sea of consciousness has become much more condensed, and the soul power that can be mobilized is also more powerful.

He curiously controlled a soul power and flew out of the door, obviously the person was still sitting in front of the Dan furnace, but he could see the picture outside the house, and it was magical!

This made him even more excited, he had just stepped into the soul refining realm, if he was stronger in the future, wouldn't he be equivalent to a humanoid satellite!

It's just that the Dan fire in this Dan furnace doesn't seem to have any effect on his soul power, and he still has to ask Xun Lao for advice on how to continue to enhance his soul power.

Xun Lao next door also noticed his changes, it was really terrifying, this kid only took a month to step into the soul refining realm!

Thinking that it took him more than a year to achieve this level at that time, he couldn't help but be a little amazed at Ye Yinan's soul talent, but the latter's perseverance during this period of time, he also saw it in his eyes, where could ordinary people endure the pain of soul burning every day?

Persistence always pays off.

Ye Yinan played with his soul power for a while, and probably knew the scope of his soul power, so he was ready to start the first alchemy.

He threw the first herb into the Dan furnace, and in the perception of soul power, the herb gradually turned into a puddle of liquid under the scorching of the Dan fire, and the first step was very smooth!

He hurriedly accepted the medicinal liquid in a jade bottle and began the refining of the second herb.

This order Huiyuan Pill is mainly made of Puyuan grass and refined with four herbs, and the process is not complicated.

It didn't take long for Ye Yinan to refine all the medicinal liquids and begin to fuse the medicinal liquids, which was also the most difficult step.

He sent the medicinal liquid of the five jade bottles into the Dan furnace, not daring to slack off in the slightest, and at the same time used his soul power to sense the fire temperature and medicinal liquid in the furnace, and changed the fire temperature by controlling the amount of yuan stones.

The five tans of liquid medicine are close together, touching each other but not blending.

But just as everything was going according to plan, the soul power in the Dan furnace suddenly became extremely unstable, as if it was a flame swaying in the wind.

Sure enough, the next moment, the unstable soul power caused the fire temperature to get out of control, and the medicinal liquids that had just begun to show signs of fusion began to repel each other, and then burst open, splashing on the inner wall of the Dan furnace.

Ye Yinan looked at the splashed liquid in disappointment, and fell into silence, just now he clearly felt that the sea of knowledge was shaking for no reason, and he suspected that it was still a problem after the soul was fused with fragments, and it was a reason for the evil disease.

Xun Lao's figure appeared behind him at some point, obviously seeing Fang Cai's situation, he sighed and asked, "Have you ever had a traumatic soul?" ”

Ye Yinan couldn't explain this secret, so he had to nod.

Xun Lao was also very disappointed in his heart, such a good seedling, the result was ...... What a jealous talent!

He lamented: "Your soul power talent can be ranked in the forefront of the old man's life, and perseverance is even more difficult for ordinary people to reach, but ...... Alas...... You are not suitable for Dan Dao. ”

PS: Small blackboard, scientific alchemy, the fire temperature in the quadrant is a smooth curve~