The perception of rules cannot be carried on indefinitely. Lin Feng would now take out an hour every day to comprehend the rules of fire through the Nine Heavens Purple Fire, and then an hour to comprehend the rules of fire through the Netherworld Ghost Fire, and then directly comprehend the rules of Yin by virtue of the connection with the rules of Yin.

After such three hours, at least in the next four or five hours, even if Lin Feng comprehended the rules, it would not have any actual effect. And even after four or five hours, Lin Feng could already comprehend the rules again. If the interval is too short, in addition to the fact that the effect of this rule will not be too good, and if you feel it again after four or five hours, the effect will become even worse.

A set of rules that have been summed up in the cultivation realm, in fact, the comprehension rules of the masters of the Earth Yuan Realm are best concentrated within two hours every day. If it is another fire attribute monk who has a different fire, when there is only one different fire, it is good to use the different fire to perceive an hour, and then not to perceive the different fire for an hour. If there are two different fires, then use each of them to sense an hour.

And if it is three or more kinds of different fires, the total time is two hours anyway, and as for how to distribute it, it depends on the monk's own feelings.

Because the rules of yin and the rules of fire do not affect each other, Lin Feng can also comprehend the rules of yin for two hours after comprehending the rules of fire for two hours. But in the next eight hours, Lin Feng was idle again. Now that Lin Feng has the Nine Heavens Purple Fire, which is known as the Medicine Saint Tianyan, he spends his free time on alchemy. But at the same time as alchemy, Lin Feng also began to think about some things in the future.

The monks of the Earth Yuan Realm will even have more leisure time than the monks of the Human Yuan Realm. This is the case, and the monks of the other Earth Yuan Realm are also the same. When other Earth Yuan Realm cultivators in the Burning Wasteland Domain encountered such a problem, some would find time to practice a few more spells, and some would be obsessed with alchemy, refining, arraying, and breaking formations. However, these people often don't stay in retreat for a long time, and they always have to walk around the cultivation realm often.

Lin Feng had broken through the realm of the Earth Yuan Realm and the Twin Heavens, but in fact, Lin Feng's refining ability had not improved much. One of them was that Lin Feng hadn't found time to delve into this aspect yet, and secondly, it was also because Lin Feng's current Nine Heavens Purple Fire was not particularly strong in terms of refining.

In terms of alchemy, the Nine Heavens Purple Fire can be regarded as the top of the earth-level fire. However, the reason why such an effect can be achieved is not because of the strength of the different fire of the Nine Heavens Purple Fire, but because of the special effect of the Nine Heavens Purple Fire that can quickly extract the medicinal power of the material.

A third-grade Muyun Immortal Orchid, if Lin Feng of the Second Heaven of the Earth Yuan Realm burns the fire with the ghostly light embers, he can almost extract all the medicinal power in the Muyun Immortal Orchid in half an hour. But if it was to use the Nine Heavens Purple Fire, Lin Feng would be able to complete this step without the effort of tea.

Because of the ability of the Nine Heavens Purple Fire to extract and purify the medicinal power in the shortest possible time, the Nine Heavens Purple Fire has become one of the most powerful different fires in alchemy. But this ability doesn't have much advantage in terms of refining. And just looking at the temperature of the different fire, even if the Nine Heavens Purple Fire is stronger than the Ghost Ember Burning Fire, it is actually not much stronger.

In terms of refining, the Nine Heavens Purple Fire would not be much stronger than the Pyanton Ember Burning Fire, but overall, it was actually about the same. In this case, after Lin Feng broke through to the Earth Yuan Realm Dual Heaven, Lin Feng could also have a breakthrough in refining.

But comparatively speaking, Lin Feng, who has the Nine Heavens Purple Fire, will still make greater progress in alchemy. After returning to the Burning Domain, Lin Feng spent most of his time on alchemy, in addition to comprehending the rules. But this time, Lin Feng couldn't bear the feeling of loneliness.

The last time he broke through the Earth Yuan Realm, Lin Feng had spent more than a hundred years cultivating the alchemy technique. But at that time, the Yanyang Sect had already dominated the Yuyang Mountain Range, and there were no strong opponents in a short period of time. There was no reason for urging Lin Feng to improve his combat effectiveness faster.

But this time, Lin Feng wanted to take revenge on Yu Hanfei as soon as possible.

In order to save Lin Feng, Old Man Long burst out of his peak combat power when his soul was damaged. Soon after the war, Old Man Long sat down because his soul was gone. Although the old man Long was not far from the limit, in the final analysis, because of Yu Hanfei, the old man Long shortened his life span by forty or fifty years.

Old Man Long has passed away, and Lin Feng is now willing to exchange everything he has for Old Man Long to live for another fifty years. However, after all, this is only Lin Feng's own idea, and it is impossible to achieve it.

Lin Feng desperately wanted to take revenge on Yu Hanfei, but now he was indeed not Yu Hanfei's opponent. Through the Nine Heavens Purple Fire and the Nether Ghost Fire Induction Fire Rules, the speed at which Lin Feng's realm was raised should already be quite fast. But in Lin Feng's opinion, it is far from enough. Lin Feng wished that he now had the ability to take revenge on Yu Hanfei. But since there is none, Lin Feng will do everything possible to shorten the time required in the middle as much as possible.

Lin Feng is only in the realm of the Earth Yuan Realm Quadruple Heaven now, and if he wants to defeat Yu Hanfei and be conservative, Lin Feng also has to raise the realm to the Earth Yuan Realm Quadruple Genius Xing. Yu Hanfei is not a simple Earth Yuan Realm Four Heavens master, not to mention that Lin Feng still doesn't know if Yu Hanfei still has other aspects of the hole cards, just one Seven Poison Absolute Flame is enough to make the vast majority of Earth Yuan Realm Six or Seven Heaven Cultivators jealous of Yu Hanfei inexplicably.

And the Seven Poison Absolute Flame, a comprehensive type of fire, has a considerable improvement on Yu Hanfei's ability in all aspects. If you want to defeat Yu Hanfei, even if Lin Feng has quite a lot of hole cards, I am afraid it will be difficult to do it when he is in the Triple Heaven of the Earth Yuan Realm. And if Yu Hanfei's hole cards are more abundant, Lin Feng, who has just broken through the Four Heavens of the Earth Yuan Realm, is afraid that he may not be able to defeat Yu Hanfei.

For Lin Feng, the main problem now is to raise the realm first. After raising the realm, including the ability to refine weapons, the ability to refine pills, and the power of some Yin attribute spells that have been comprehended before, these aspects will also be improved logically, and there will be no problems.

And if he wants to raise the realm as soon as possible, Lin Feng doesn't have many options. The rules of yin, Lin Feng can only use the most primitive method to comprehend it so far. Because of the strength of the rules of yin, even if there is no treasure of yin attributes, if you rely on the rules of yin to improve the realm. Lin Feng could almost ascend to the realm of the Four Heavens of the Earth Yuan Realm within a thousand years.

From the first time to enter the Earth Yuan Realm Double Heaven to break through to the Earth Yuan Realm Four Heaven Realm, for other monks, it only took a thousand years to break through to the Earth Yuan Realm Fourfold Heaven Realm. But Lin Feng was still too slow.

It was difficult for other Yin Attribute cultivators to be fast even if they wanted to, but Lin Feng activated the second main rule, which was the rule of fire. In this way, it is possible to make the impossible possible.

In terms of the current Lin Feng, if he wanted to break through to the realm of the Earth Yuan Realm Triple Heaven. There are two ways, one is to raise his perception of the rules of yin to the level of the triple heaven of the earth element realm. The second is to raise the perception of the rules of fire to the level of the Triple Heaven of the Earth Yuan Realm.

If it is other monks who have activated the dual main rules, they often rely on the perception of the first main rule to improve their realm. However, because Lin Feng had subdued the Ghost Ember Burning Fire and the Nine Heavens Purple Fire, there was another kind of Xuan-level Alien Fire in the Extreme Dao Immortal Pot. In the end, Lin Feng actually relied on his comprehension of the second main rule to break through to the realm of the Earth Yuan Realm and the Second Heaven.

And because you can use the Nether Ghost Fire and the Nine Heavens Purple Fire to comprehend the rules of fire at any time. In the future, at least before Lin Feng finds any Yin attribute treasure, Lin Feng's comprehension of the rules of fire will still be faster than in the rules of yin.

The comprehension speed of the rules of Lin Feng and Fire was enough to make many masters of the Middle Three Realms jealous. But Lin Feng still felt that it was not enough. And on the basis of the present, if you want to improve, it is best to find a few more different fires of not low grade. The more types of different fires there are, the higher the grade, and the faster the efficiency of Lin Feng's perception of the rules of fire will be.

When he had just possessed the ability to refine the second-grade elixir, Lin Feng had the idea of going to Zhongzhou to experience it. Old Man Long also told Lin Feng that there are countless Zhongzhou monks who can be regarded as cultivation geniuses. In Zhongzhou, the competition of various natural materials and treasures is also unusually fierce.

But when it comes to the abundance of materials. The other four states are not comparable to Zhongzhou combined.

In the case of Nanzhou, it is extremely rare, but in Zhongzhou, it is actually far less rare than that of Nanzhou. The cultivation of the Yuan Infant Stage and the Transformation Stage is not guaranteed. In the case of instrument cultivation in the Zhongzhou Combination Period, at least more than thirty percent of them have different fires. Even if it is a yellow-level fire, it is still much stronger than nothing.

And the weapon cultivation masters of the Zhongzhou Diyuan Realm generally have Xuan-level fire. If he didn't even have a kind of Xuan-level alien fire, this Earth Yuan Realm cultivator was definitely one of the people who were the most miserable in his realm.

There are very few people in the Nanzhou territory who come up with strange fires to sell. However, in the case of Zhongzhou territory, the fire is already close to the clear price. Although it is still a situation where there is no market, as long as you hold enough spirit stones and squat in some markets for a long time, it is really not too difficult to get a different fire above the Xuan level.

Even if the alien fire can be bought with spirit stones, the price is not something that ordinary monks can afford. Lin Feng is also a person with a family business now, and there are still so many apprentices under Chiyun Peak who need Lin Feng to take care of. Therefore, even if there is a spirit stone, when it is not necessary, Lin Feng will not buy a different fire. What's more, in order to cultivate alchemy, Lin Feng had already replaced a large number of his previous spirit stones with medicinal materials.

Some of these herbs were damaged, and more of them were turned into pills that could be consumed. But these elixirs, in addition to Lin Feng's own use, Lin Feng also had to make some reserves for Yanyang Sect. If you calculate it, Lin Feng really doesn't have many spirit stones now.

But even if you don't have to buy it, because of the special distribution of spiritual power in Zhongzhou, the possibility of finding wild fires in Zhongzhou is still far higher than that in Nanzhou.

Lin Feng made the decision to go to Zhongzhou and notified these close people in advance. The others began to make various preparations, while Lin Feng continued to immerse himself in the ascension of alchemy.