After Chen Daozi finished eating and drinking, he led Xu Yi to the valley where he often taught, which was only more than 3,000 feet away from the coastline, which was not considered remote.

Xu Yi was curious. Chen Daozi waved his hand and a huge bluestone where he was teaching suddenly cracked. Xu Yi was shocked and stared at Chen Daozi in surprise.

Chen Daozi said, "You also know that preaching is not easy, housing prices in Moshui City are high, renting and selling are not easy, and the coastal areas are all territories, and I have to consume them. I am preaching here that it is very close to the coastline, but people's hearts are unpredictable. You will never know what kind of dark thoughts are there among the monks who listen to your preaching, so I have to prepare."

Xu Yi nodded, "I am also a casual cultivator. I know that if I don't even be careful, then there will be nothing."

"Thank you for understanding."

Chen Daozi nodded, and he led Xu Yi all the way downstairs, walking tens of feet in a winding and twisting way to a Xuankuo Hall that stretches seven or eight feet apart.

The four walls of the hall are covered with ink-colored iron rocks, and the four walls are decorated with several marmoset teardrops. The soft light fills the entire space. There is a soft collapse in the upper left corner, that's all.

"Where is the Tianling?"

Chen Daozi directly hits the key to the problem.

Xu Yi took out a transparent thing that was thinner than the hair and was only the length of a little finger, and spread it in his hand.

Chen Daozi's eyes lit up, staring at Tianling for dozens of breaths, sighing, "I have other raw materials. Today I will refine the simplest flying knife. Just accommodate one Tianling."

As he said that, he took out the bathtub, took a bath, changed his clothes, burned incense and prayed. After a series of processes, he sat up in the hall with a cushion. With a wave of his hand, a cauldron with spiritual power was now on the ground. In the next moment, a wisp of red breath took off from his hand and rushed straight to the cauldron. Then a white flying knife was thrown into the cauldron. The flying knife just entered the cauldron, and began to tremble all over, and smoke of different colors were overflowing. Then, the heavenly spirit was thrown into the cauldron by Chen Daozi and began to interact and entangle with the flying knife.

Chen Daozi explained while operating, Xu Yi was like a dead tree, sitting in the corner without moving.

"…………The way to refining weapons, in addition to the knowledge of refining weapons, also has extremely high requirements for mana and corpse qi. For example, if the cauldron I stimulated, the thicker the Dharma Yuan, the higher the quality of the cauldron will be, and the longer it will be maintained. Similarly, the thicker the corpse qi, especially the monks who have achieved corpses, or the monks who have killed corpses, their corpse fire is mellow, and they can be used to refine weapons with half the effort..."

"...My flying knife is made of cold iron and melted into corpse qi. It is considered a magic weapon. In the process of melting the heavenly spirit, it will break the five elements balance originally built inside the flying knife. Therefore, the key now is to reconstruct the five elements balance. I only try to melt one heavenly spirit, which is considered to reduce the difficulty of rebuilding the five elements balance as much as possible..."

Before Chen Daozi finished speaking, the Tianling sank into the flying knife, and the smoke of different colors that appeared around the flying knife suddenly disappeared. Chen Daozi said dejectedly, "Sorry, I still failed. Alas, I am getting less and less progress. I will not fail when I reached this point."

Not only was he shining with resentment, but he was also angry. What a great opportunity, he was ruined again.

"It doesn't matter if you don't practice your hands for three days, let's continue."

Xu Yi took out another Tianling.

Chen Daozi widened his eyes and said, "Is it still practice?"

"Refining! How to not practice!"

"But I have no raw materials."

“I have it here.”

As he said that, Xu Yi took out a shiny dagger, "From the material, it should not be under your flying knife, but it just didn't integrate the corpse energy. I believe that for you, smelting the corpse energy will only happen in a moment."

Chen Daozi and Zheng focused on it. Soon, the sacrifice and refining began again.

"...It's really difficult to master the balance of the five elements. Actually, I used to be a talisman master. Basically, I have had the experience of making talismans and alchemy before. Because I belong to the talisman master and alchemy master, I have the most exquisite grasp of the balance of the five elements. However, if the talisman master and alchemy master reach the advanced level, it is extremely popular. Few people are willing to change their careers to become weapon refiners. Therefore, the grassroots weapon refiners are all talisman masters and alchemy masters who are not up to the level..."

"...The heavenly spirit is melted into the magic weapon, and it has its own unique rules. I told you that the formation diagram is the highest-level magic weapon, which is needed. The basic magic weapon is accommodating ordinary heavenly spirits, but it cannot use the formation diagram..."

Xu Yi interrupted, "Why is this? If there are thousands of heavenly spirits, don't you use the array map?"

Chen Daozi said, "Thousands of heavenly spirits have long been aggregated into colored heavenly spirits. I told you earlier that when the number reaches a certain level, the heavenly spirits will automatically aggregate and divide into five colors of gold, purple, black, white and green."

Xu Yi said, "Can there be both colored heavenly spirits and ordinary heavenly spirits in that magic weapon?"

Chen Daozi said, "This is impossible. The colored heavenly spirit will definitely devour the ordinary heavenly spirit. If a magic weapon contains the colored heavenly spirit, then every unit combined according to the array diagram must be the colored heavenly spirit. You don't need to know these now. You just need to know that there are two most commonly used structures for ordinary heavenly spirits. One is the triangle structure, that is, the three integer multiple heavenly spirits, which form one side of the triangle, and the other is the five integer multiple heavenly spirit, which forms each side of the five radical. Do you know why the reason is this?"

Xu Yi said, "Is it because of the stability of the triangle?"

Chen Daozi widened his eyes, "You, you are really different. I have been thinking about this principle for many years before I understand it."

Xu Yi said intimately, "I am just a math." But he was humble and asked Chen Daozi to concentrate on refining weapons.

Chen Daozidao, "In the absence of a formation diagram, these two shapes of Dharma grooves are used the most, and the number of heavenly spirits they accommodate can reach the limit of heavenly spirits' fusion into green spirits..."

Suddenly, a light puff came, and there was no smoke around the dagger. Obviously, failure had come again.

Chen Daozi was extremely embarrassed. Xu Yi waved his hand and took out another dagger and a Tianling.

Chen Daozi was simply ashamed. He took the dagger and Tianling, continued to sacrifice without saying a word, and began to tell again.

Less than half a stick of incense, the third sacrifice failed.

"Let's take a break, and we'll continue when you recover. Now, see how I'm doing my sacrificial practice. If there is any problem, please point it out."

Xu Yi said with a smile, without any pain or boredom on his face.

He asked Chen Daozi to rest not because he felt sorry for the Tianling, but because he saw that the continuous sacrifice and refining Chen Daozi's Dharma Yuan and corpse fire were consumed a lot and needed time to recover.

Chen Daozi was stunned when he heard this, "You, you want to try yourself, this, this..."
Chapter completed!