After dinner, Li Yun didn't have anything to explain to Li Shu, because he wanted to teach Li Shu the refining method the next day, so that he could become proficient in the first volume of the Medicine King Dictionary again.

Li Shu didn't go to the eldest brother Li Yun to chat after eating, and went back to the room to practice by himself.

The cultivation of spirits is generally divided into two ways, one is to practice martial arts or combat skills to improve combat experience, and the other is to run the cultivation mind method to improve cultivation. For those who don't have a mental method, they can only slowly explore and absorb spiritual power for cultivation, which is also a common phenomenon among early cultivators, and now there are many spiritual methods, and there are more strong people.

There was nothing to do all night, and it wasn't until nine o'clock the next morning that Li Shu walked out of the room again, ready to finish eating and continue cultivating.

When Li Shu came out, he found that Li Yun was already here, and he waited until he finished washing up before eating together.

"Don't be in a hurry to cultivate today, I'll call you a refining method. This refining method is not only for refining the spiritual grass, but also for helping you connect and master the use of spiritual power, which should be helpful to you. Li Yun stopped Li Shu, who was about to go back to the room to continue cultivating, and said.

"Okay big brother!"

Li Shu didn't refuse and agreed directly, although he didn't know what this so-called refining method was and what it was for, he just believed that what his eldest brother handed over to him would be a good thing.

"Come with me!"

Li Yun didn't ink either, and walked directly to the yard with Li Shu.

Soon the two of them came to the middle of the courtyard, in fact, they could refine the spiritual grass in the room, but the spiritual power outside was more conducive to the practice of Li Shu, a novice, and more importantly, it was still morning, and Li Yun wanted to bask in the sun.

Li Yun took out a few source spirit grasses and prepared to demonstrate to Li Shu how to refine spirit grass. The rock palm grass has been refined yesterday, but even if there is a pear cloud, he will not take such an important spirit grass to Li Shu to practice, and those two rock palm grasses are of great use in the family meeting.

Unlike the Rock Brown Grass, the Source Spirit Grass is a wood-attribute spirit grass, so it requires wood-attribute spiritual power. Although Li Shu has wood attribute spiritual power, he can't directly wrap the source spirit grass with his own spiritual power, because his own spiritual power cannot be released from the body in the form of free spiritual power. Therefore, even if it is a spirit of the same nature, it is necessary to strip the spiritual power from the environment for refinement.

However, fire attribute spirits can use their own spiritual power to obtain spiritual fire, and the principle is like using a low-level martial art, which is a completely different concept from releasing spiritual power.

However, as a dual-attribute spiritual person, Li Shu still has some advantages, and it is easier for him to strip off the wood attribute spiritual power, because his cultivation is to operate the mental method to absorb the spiritual power of the two attributes of fire and wood, and he is naturally more familiar with the wood attribute spiritual power.

Soon Li Yun demonstrated how to operate in front of Li Shu, and explained it to him very carefully.

But just as the operation of Lishu is not so simple, the first step is relatively simple, and Lishu has innate advantages, so it succeeds at one time, but the later links are not so easy.

Li Shu can also release spiritual fire, but after all, his cultivation is low, and he didn't use spiritual power much before, so his control of spiritual power is not very good, so he failed the first few times.

Fortunately, the amount of Source Spirit Grass is large enough for Li Shu to conduct countless experiments, and it doesn't matter if it fails.

In the end, he failed seven or eight times, and finally after spending more than thirty minutes, he was able to refine the source spirit grass liquid. It's just that compared with the liquid medicine extracted by Liyun, the color is a little worse, that is, there are a little more impurities. Despite the use of this refining method, it is necessary to have sufficient proficiency to basically remove impurities. However, compared with others, there are still great advantages.

Thinking that Li Shu failed seven or eight times before succeeding, Li Yun's heart was much more balanced. You must know that I was in a state of exploration at the beginning, and no one explained and demonstrated to you at all, so in this case, Liyun also failed once less than Lishu.

It seems that his talent in this area is still a little higher than Lishu's, and his cultivation talent cannot be compared, but it depends on himself in his home field. However, Li Shu still has a certain talent, and according to Li Yun's estimate, the average person will fail at least ten times if he wants to succeed.

After Li Shu successfully refined a Source Spirit Grass, he did not stop, but then picked up a Source Spirit Grass and continued to refine.

This time he didn't fail again, and he succeeded in refining it once.

I failed a few times in the future, but I still succeeded a little more than I could.

"Brother, are there any other spiritual grasses, how unconscious it is to always refine this." After more than three hours and hours, Li Shu consumed the Source Spirit Grass that Li Yun took out, and he succeeded six times in total, but looking at Li Shu's appearance, he was a little unsatisfied.

"There is only this kind of spirit grass, mainly for you to learn this refining method."

Li Shu was obviously a little dissatisfied with only refining one spirit grass, and wanted to ask Li Yun for some other spirit grass practice refining methods, but Li Yun was willing to take a rarer spirit grass for him to practice.

"It's noon now, go back and rest, don't continue to cultivate in the afternoon, I'll take you out for a walk." Li Yun didn't want Li Shu to be too tense right now, and was going to take him out for a walk.

"Okay!"

Li Shu didn't object, and followed Li Yun back to the house first. He didn't want to become a machine that could only cultivate, and he would relax when it was time to relax.

"Brother, have you refined other spirit grasses?" Back in the house, Rishu asked curiously while drinking water.

"This is the rock palm herbal liquid I refined, and drinking it during the psychic period can improve my cultivation by one level." Riyun took out one of the bottles of rock palm herbal liquid and handed it to Rishu.

"Wow, that's amazing!"

Li Shu took the liquid medicine, carefully observed and played, and looked like she couldn't put it down.

"Don't be in a hurry to take it, wait until you want to break through to the spirit before using it." Riyun commanded.

"I know, brother."

Of course, Li Shu also knew Li Yun's intentions, and he still knew the truth that good steel was used on the blade.

"Brother!"

Li Shu thought for a while and asked, "In addition to the spirit grass, can other medicinal materials or treasures containing spiritual power be refined in this way?" ”

"This ......"

"I guess so."

Riyun didn't know how to answer, he really hadn't thought about it carefully. This refining method was originally made for the purpose of studying the source spirit grass, and his focus has always been on the study of drugs, although this refining method is happy, but it is like being treated as an appendage.

Li Yun only considered that the new refining method could better remove impurities, but he didn't think about using this method to refine other things that contained spiritual power. But now that I think about it, it seems that it is really a little feasible.

The reason why the new refining method can refine the spirit grass is that the reason why the spirit grass plays a large role comes from the spiritual power. What about other things that contain spiritual powers? Is it also possible to refine, and whether the things that are refined can also help improve cultivation?

If you mix the medicinal liquids extracted from different herbs or other treasures, will there be other more incredible changes, and even say that you can get the medicine you dream of.

I've been wondering, is it the wrong direction all along, what should be the right direction? Isn't that a possible direction?

Riyun asked herself over and over again in her heart, thinking about all possibilities over and over again. Admittedly, this is a viable approach. If it is just a simple mixture of several different medicinal liquids, it is obviously impossible to get a new drug so easily.

How to do it, you need to think more and do more experiments. But what is certain is that as long as you do more research, there will be unexpected gains.

Li Yun didn't expect that Li Shu's seemingly inconspicuous words would inspire him so much. It's just that this inspiration came a little late, and if I had done this experiment earlier, I might have discovered it a long time ago.

"Brother!"

Seeing that Li Yun didn't speak again for a long time, taking care of himself in a daze, Li Shu screamed strangely, pulling Li Yun's thoughts back from thinking.

"Hmm."

"I'm fine!"

Li Yun was a little absorbed in thinking for a while, and she almost forgot that she still had a younger brother hanging aside.

"Let's go to the market!"

Liyun shook his head and called Lishu to prepare to go to the market. However, he didn't really want to go shopping, but wanted to go to the bazaar to buy something with spiritual powers.

There are a lot of things that contain spiritual power in this world, including many things on demon beasts, but people don't know what they are used for, so they are relatively cheap, and they can also be bought in ordinary markets. Just took advantage of this time to buy some to use for experiments, and by the way, I prepared some things that Lishu needed to go to school.

"Good!" Li Shu happily agreed.

So the two brothers went out and walked towards the bazaar.