Zhao Yu divided the day into three parts, and spent all the morning time making talismans. In the afternoon, it was split in two. Half of it is used to improve the military formation diagram, and half is used to prepare for alchemy.

Needless to say, the earth gathering talisman is just the most superficial talisman, and with Zhao Yu's current means, making it is like probing the bag. In one morning, more than 300 talismans can be made. It doesn't take ten days to complete Cao Mengde's needs.

While making the earth talisman, Zhao Yu also studied some other wonderful talismans.

Talking to Cao Mengde before, when it came to road traffic, Zhao Yu had some thoughts. It is not necessary to use the extraordinary means of building a road with a talisman, but it can be used as an in-depth exploration of the talisman.

The earth gathering charm can absorb the soil Qi in the water within a certain range, and condense it into a mountain. Then it is completely possible to use another kind of Yuan Qi change talisman to achieve the effect of building roads and even digging caves.

The construction of roads is nothing more than a strong one and one regular. With the wonderful use of talismans, it is not difficult to solidify the soft earth. The scope of influence of the talisman is limited when making the talisman, so that as long as the talisman is buried in the soil according to the spacing and extended, it can naturally solidify a road on the earth that is countless times stronger and thicker than the cement road.

This kind of talisman, Zhao Yu developed it in only two days on the basis of the earth gathering talisman.

It is named the Soil Charm.

However, Zhao Yu did not plan to use the condensation talisman. In Zhao Yu's opinion, with the Concrete Talisman, the difficulty and time of building the road are greatly reduced. But at the same time, it will also make Cao Mengde's regime idle in this regard, and hinder the formation of foreign technology in this area. This is not a good thing. And Zhao Yu is not Cao Mengde's talisman machine.

Just like Zhao Yu's reluctance to directly participate in the war. With him, the power of mortals will lose its meaning in many ways.

People's world should be created by people themselves. It's not that Zhao Yu is hypocritical, but he feels that he interferes in everything, and it is very wrong to involve his energy in these trivialities. Second, the civilization of this world is his civilization, not the civilization of others.

Even the earth transformation talisman that he researched later, Zhao Yu also did not plan to take it out. The so-called earth talisman is a variant of the talisman. The Earth Transformation Talisman is no longer a simple change of the Earth Qi, but also the mystery of the change of the Water Qi. It is a cross-application of the two kinds of Yuan Qi changes.

The usefulness of the earth transformation talisman, in Zhao Yu's opinion, for digging caves in the mountains, it is no better. As long as you bury an earth talisman in the rock, it will take a moment at most, and no matter how hard the stone is, it will turn into muddy water.

Absorb the water Qi and combine the soil Qi, melt the soil into the water, this is the mystery of the soil charm.

But once this kind of talisman is used, people have dependence, and they will not think of other ways to dig holes in the mountains. It is also an obstacle to foreign technology. Once there is no such talisman, people will be blind.

So don't use it.

This is just Zhao Yu's exploration of the way of Fu Qi and his understanding of the changes in Yuan Qi.

No universe can give birth to immortal civilizations, and there is no one of billions of billions of living beings with roots. There is no foundation for the immortal civilization. Therefore, the application of the Immortal Dao method must be in line with mortals, and cannot tend to the Immortal Dao. Otherwise, once Zhao Yu went to the high-level universe one day, or let it go, then the civilization that had been developed completely with the Immortal Dao method would collapse in an instant.

That's why he bothered to cut and cut down the methods of the Immortal Dao, and tried every means to make them available to mortals.

Whether it is gathering earth talismans or interfering in the battle of Guangling, in the final analysis, it is actually not in line with Zhao Yu's wishes. He prefers to sow seeds and let people grow their own towering trees rather than just teach people to fish.

Fortunately, the impact of the earth gathering charm is smaller, after all, it is a stupid way to control floods. Even after 2,000 years, it's still like that. It is nothing more than embankment building, afforestation and the like, and there is no fundamental difference in the technical level of external roads. And the battle of Guangling can be regarded as a mistake.

Anyway, in the future, Zhao Yu will never interfere in the war.

As for the Five Elements Army Formation, since they have practiced to that extent, it is okay to make a little push.

When Xi Zhicai succeeded Zhao Yu to teach his disciples, Zhao Yu also began to refine pills.

Alchemy is a delicate job, so there are a lot of preparations. In fact, although Zhao Yu pondered a lot of Dan recipes in his heart, it was the first time in the real universe to actually operate.

First he needed a Dan furnace.

Hardware can be used to refine the Dan furnace, but at this stage, there is no need for that. The Dan furnace made of hardware is not suitable for the refining of Dan pills that are not in the product because of the fierce nature of gold. Ordinary medicinal materials are placed in the Dan furnace of hardware refining and directly turned into fly ash.

Therefore, the Dan furnace used by Zhao Yu to refine the pill was made of jade.

Because the Dan Pill he wants to refine is a non-compliant Pill suitable for mortals, the requirements for the Dan Furnace are not high. Refining this jade pill furnace, which was no more than the size of a basin, only took seven or eight days to complete it after making talismans and perfecting the formation diagram.

The formation diagram said that three days would be three days, and it had been perfected a long time ago. However, Cao Mengde did not send someone to pick it up on the third day. Presumably, he planned to wait for the half-moon period to arrive, and take it away with the talisman. Zhao Yu didn't care.

For the refining of the jade pill furnace, Zhao Yu only used a set of five elements of the Yuan Dao pattern. In fact, this Dan furnace is just an enlarged combination of talismans.

In the final analysis, there is a great relationship between refining tools and talismans. Especially this kind of semi-magic weapon, which is not even a magic weapon, does not need to use the forbidden method to penetrate the layers of legal prohibitions. With only the wonderful use of the talisman, you can achieve the effect that Zhao Yu wants.

Of course, Zhao Yu has not yet perfected a set of real forbidden methods, so if you want to refine the weapon, you still need to start from scratch. This is also the reason why Zhao Yu put the matter of refining the array flag to the end.

The washbasin-sized jade Dan furnace is crystal clear throughout. Big belly, small mouth, three-legged. Around the round and smooth belly, there are faint moirés. These moire patterns are not immutable, they will change their form with the changes of Yuan Qi, and they look quite wonderful.

After the Dan furnace was refined, everything was ready, and Zhao Yu began to refine the Dan.

In the previous six months, Zhao Yu had personally experienced the medicinal properties of each medicinal material in the medicine warehouse of the other hospital. According to the Dan prescription that came out, more than ten kinds of medicinal materials were taken. He also asked Cai Bo to go to the eye of the water in the Five Elements Array of the Courtyard and fetch spring water from a bucket made of jade.

Only then did Zhao Yu enter the state of alchemy.

It was in the afternoon that Xi Zhicai was also standing behind Zhao Yu, intending to observe.

Zhao Yu didn't care, he watched casually.

Zhao Yu sat down cross-legged, flicked his sleeves, rolled up the basin-sized Dan furnace, and stood in the air in front of him. The mana urged the Dan furnace to turn drippingly, and first washed the Dan furnace inside and out.

Then he rolled open the lid with mana, and snapped a little blue spark and fell into the Dan furnace.

This blue fire is not an ordinary fire. but a fire in the wood.

Fire in wood, fire in stone, fire in the air, if the only one is smelted, it can be outside the samadhi.

The true fire of samadhi is divided into two stages: internal and external. The inside is spirit, and the outside is wood, stone, and air. The unity of the inside and outside is the true fire of samadhi. Now Zhao Yu has not yet practiced.

However, the fire in the wood and the fire in the stone in the outer samadhi are difficult for Zhao Yu. It's just that the air fire is a little more troublesome, and it hasn't been practiced yet.

The fire in the wood belongs to the fire in the wood, its burning is faint, its nature is obscure, and the truth shown is much softer than the fierce bursting fire. It is the most suitable for refining pills that are not in the product.