There are four realms of martial artists, martial arts, warriors, martial artists, and martial artists, which correspond to the four steps of cultivation, such as easy tendon forging bones, marrow washing and blood exchange, strong pulse and clear knots, and congenital perfection.

The tendon is the fascia, the bone is the bone, the skin is the bone, the skin is the skin, and the meat is the muscle, which are the key to the strength of the human body.

Washing and exchange blood is to purify the impurities in the blood and bone marrow, blood transports nutrients to all parts of the body, and bone marrow is hematopoietic tissue, but there are many impurities in the blood and bone marrow, which will have an impact on the function of the human body.

The meridians are different from the blood vessels, which are invisible, intangible, and mysterious in the human body, and the acupoints are located in the meridians, which are important connection points of the meridians and the key to the communication between the human body and the outside world.

There are thousands of meridians and acupoints in the human body, but most of them are in a closed and blocked state, and it is quite difficult to communicate with the external vitality.

It is said that when the embryo is conceived in the mother's body, the meridians and points are unblocked, and it can absorb nutrients in the mother's amniotic fluid to grow, which is congenital respiration; when the baby is born, most of the points will contract and close, and many meridians are also blocked and blocked, so they will use the mouth and nose to breathe, which is the acquired breathing.

Heaven and earth are filled with all kinds of gases, there are clear and turbid, what is good for the human body is called clear gas, and what is harmful to the human body is turbidity. Qing Qi can enter the acupoints through innate breathing and circulate in the meridians, but acquired breathing does not have this effect, because most of the breath from the mouth and nose is turbidity and cannot enter the meridians, and most of it is only turned around in the lungs and then discharged.

Therefore, if you want to absorb a large amount of pure qi that is beneficial to the human body, you can only return to the innate through the strong pulse and return to the innate through the strong vein, which can reach the highest state of the martial artist, that is, the congenital perfection realm, like this kind of martial artist, it is called the innate martial arts.

Qi An never expected that he would suddenly reach the point where he had all the know-how and become a veritable innate martial sect, which was completely like a dream, it was incredible.

"Could it be because of the blue flames?"

Qi An recalled the situation just now, the dark blue flame turned into a cold current, drilled into his body, and wanted to freeze himself, and then his body erupted with terrifying blazing power, fighting against the cold current, the two fought with each other, and in a simple and direct way, they broke through the originally blocked and closed meridians and acupoints, and completed the process of strengthening the veins in a short period of time, which is probably the reason why Qi An was able to quickly reach the innate perfection realm.

In fact, Qi An's guess was completely correct, the reason why he was able to quickly open through the meridians and acupoints was precisely because of the battle between the cold and hot air currents. But this method is extremely brutal, almost impossible to bear, in exchange for an ordinary martial artist, the meridians have long been destroyed, can die thousands of times, but Qi An has an innate self-healing ability that can be called a perversion, while the meridians are destroyed, they are also reshaping and repairing, and finally break and stand, the knack is all connected, and the promotion is congenital consummation.

Qi An had a good brain, and after a little thought, he roughly understood the reason for the matter, but he couldn't figure out what this dark blue flame was, and after thinking about it for a long time, he didn't have an answer, so he didn't bother to think about it again, put aside his distracting thoughts, calm down, and began to try to cultivate.

The first part is the acquired heart method, which is mainly based on breathing and breathing through the mouth and nose, which is suitable for the cultivation before the martial sect, and the second part is the innate heart method, which is mainly based on the absorption and operation of the acupoints and meridians, and must be based on the premise of innate perfection.

Martial Sect is the key to the division between acquired and innate beings, and it is also an important turning point in the path of cultivation. Before Wuzong, it was to use the Yuan Qi of Heaven and Earth to temper the body and lay a good foundation, and after Wuzong, it was to absorb the Yuan Qi of Heaven and Earth, sink the dantian, and save one out of ten, until the Qi condensed and promoted to a higher realm.

Almost all of the formulas that are widely circulated among the people are acquired heart formulas, and the highest can only be cultivated to the congenital perfection, and most of the innate heart formulas that can make the martial arts continue to cultivate and improve are not passed on, and only those who cultivate the true forces and the powerful people of the Great Martial Dynasty have them, and it is not easy for ordinary martial artists to obtain them.

And Qi An's operation at this time is naturally the next part of the foundation building method, of course, it is likely to be incomplete, but it is still useful for Qi An, after all, the first part of his previous cultivation is also incomplete, and he has also stumbled all the way to the martial artist!

As soon as the innate heart method was put into operation, the body immediately reacted, and Qi An could vaguely feel that many points on the surface of the body began to "breathe" like the mouth and nose, and the slightest air flow was inhaled into the points, traveling along the meridians at an extremely slow speed, circulating in the body, and finally converging towards the dantian under the abdomen, which was completely different from the previous cultivation experience!

When it comes to the stage of washing and exchanging marrows, you will feel that the blood runs rapidly, there is a slight burning sensation in the depths of the bone marrow, and a large amount of sweat on the body surface overflows, and there is a fishy odor, which is the harmful impurities in the bones and blood that are discharged from the body; and then the strong pulse will sense that there is an air flow in the body, but it is blocked in many places, not very smooth, and there will be a stinging sensation from time to time.

In general, the feeling of cultivating with the acquired mental method before was not good, and it can even be described as suffering, but cultivating with the innate mental method is just the opposite, just like soaking in hot water in the winter, with a light breeze blowing through the body on a hot day, or eating delicious food when you are hungry, and lying on a soft bed when you are sleepy, it is simply refreshing, very comfortable, and completely a kind of enjoyment.

At the same time, the innate heart method is also more efficient than the acquired heart method, because the number of acupoints is large, and the proportion of pure qi included is high, which is faster and more convenient than a single mouth and nose spit.

The Heaven and Earth Yuan Qi enters the body through the acupoints, travels along the meridians under deliberate guidance, circulates around the limbs and hundreds of remains, and finally converges towards the place where the Dantian Qi Sea is, which is a Zhoutian cycle.

In other words, the acupuncture point is the entrance, the meridians are the path, and the dantian qi sea is the endpoint, and the heaven and earth vitality absorbed from the outside world moves in turn in this order. Although in this process, there will be a lot of heaven and earth vitality that overflows the meridians uncontrollably and is lost, but there are also very small parts that successfully reach the end point and accumulate in the dantian, which is what the innate heart method mantra says, "Qi sinks into the dantian, and ten save one".

In other words, after a weekly cycle, about one-tenth of the amount of heaven and earth vitality that was inhaled would accumulate in the dantian.

However, Qi An only ran for a week, and then he found that something was wrong, and a vast part of the Heaven and Earth Yuan Qi that entered the dantian suddenly disappeared strangely, and in the end, not one-tenth remained, but not even one percent.

"Strange! What went wrong? Could it be that the foundation building method that I sorted out by myself was wrong?"

Qi An endured his temperament and tried to run for another week, and indeed less than one percent of the Heaven and Earth Yuan Qi would remain in the dantian, and most of the others, the moment they entered the dantian, would immediately disappear out of thin air inexplicably.

"It's really evil!"

Qi Anwu did not give up, continued to operate his mental method, and condensed his spirit to sense at all times, and finally he noticed a hint of something, there was one more thing in his dantian, if there was nothing, it was like fog and not fog, and it was the blue flame that had penetrated into his body before.

"Why did this ghost get into my dantian?"

Qi An was so shocked that he almost jumped up from the ground, and he could no longer cultivate with peace of mind.

"Could it be...... Those vanished Heaven and Earth Yuan Qi were swallowed up by it?"

Qi An suspected that the dark blue flame was playing tricks, with his long-term sorting and comprehension, even if the foundation building method he cultivated was flawed, it should be generally feasible, it could not be so inefficient, and the only explanation was the dark blue flame in the dantian.

Qi An suddenly felt his scalp tingle, his back was cold, and the excitement of reaching innate perfection disappeared in an instant, even if he was bold, he couldn't help but be frightened, after all, there was a weird and terrifying thing in his body, who knew what harm it would produce?

However, at present, this thing has no other effects for the time being, except that it will devour the Heaven and Earth Yuan Qi that enters the dantian. But just devouring the vitality made Qi An have a big headache, how can he cultivate and improve in the future?

Qi An was frightened, but he forced himself to calm down, thinking about how to get this ghost thing out of his body. But after thinking about it, he still didn't have a clue, after all, he didn't even know what this dark blue flame was, so how could he expel it?

It seems that there is no way to take it for the time being, this trouble will have to wait until there is an opportunity and a clue in the future to solve it, and at present, it is more important to leave here and find Long Wu for revenge.

Long Wu is a realm higher than Qi An, pressing Qi An to fight, but now Qi An has also become an innate martial sect, and his strength has greatly improved, it is difficult to say who abuses whom, and it is difficult to say who abuses whom, and it is not good that the strong and weak positions will be exchanged.

Qi An jumped into the underground lake, followed the same path back to the ancient well, this well hole is very narrow, like a big chimney, he used his hands and feet, supported the wall of the well to climb up, and soon came to the bottom of the stone grinding disc covering the surface of the well, and then with all his strength, he slapped the stone grinding disc with one palm.

"Boom!"

The large grinding disc, which was a foot thick, was torn apart by Qi An's palm, and in the loud noise and scattered rubble, a thin figure seemed to jump out of the stone and fell gently and skillfully to the side of the well.