Hearing Jiang Yu ask how the dragon blood stone could assist in cultivation, the sword spirit did not understand what it meant, so Jiang Yu gave an example of using the sword washing technique to assist the sword spirit with the method of spirit stones.

"This is the * way, never do!" said the sword spirit with a roar.

Jiang Yu said curiously: "*Dao, but my Jiang family has been cultivating like this for generations, and they all use spirit stones to cultivate." ”

"So they haven't had much to do for generations. Sword Spirit teased. Then he continued: "The sword qi is the purest and most rhino qi between heaven and earth, and the sword qi cultivated by oneself is the best and purest. Those so-called spirit stones, although they are rich in a lot of spiritual energy, are mixed and turbid. It's harmful, and if you use it too much, the turbidity will gradually block the meridians and sluggish the dantian, and your cultivation won't be as high as it is in the end. If you want to practice the bipolar sword heart, listen to me, only cultivate on your own, and never use spirit stones to assist in cultivation. ”

"There is also such a saying......" Jiang Yuxin said, this kind of statement is unheard of. Looking at the dragon's blood stone in his hand, he said regretfully, "Then it seems that this stone can only be sold, it's a pity." ”

"Why sell it?" said the sword spirit.

"Didn't you say that I can't use spirit stones to assist in cultivation, why don't I sell them and keep them, and I shouldn't eat and drink. Jiang Yu said helplessly.

"When did I say that the Dragon's Blood Stone is a spirit stone?" the Sword Spirit retorted.

"Oh?" Jiang Yu thought about it, the sword spirit really didn't say that the dragon blood stone was a spirit stone, and the only time it was mentioned was that it was also a different stone, not a spirit stone.

"You're not bad luck, you got such a strange stone, with it, you will soon be able to cultivate the bipolar sword heart. Sword Spirit said this, and Jiang Yu was overjoyed when he heard this. Just as he was about to ask him how to cultivate, Xiao Ruo had already prepared a meal and brought it in, and the sword spirit seemed to have disappeared. Jiang Yu simply put away the dragon's blood stone, ate and chatted happily with Xiao Ruo, and waited until Xiao Ruo went to sleep. The sword spirit appeared again.

The sword spirit appeared and said: "I can teach you a set of marrow cleansing and vein nourishing techniques, originally you can't use this set of mental methods after learning it, but with the dragon's blood stone, there will be no problem." ”

"The secret of cleansing the marrow and nourishing the pulse?That is the mental method of the middle grade of the earth, and you can even do this?" Jiang Yu was shocked. The reason why he knows this trick of washing the marrow and nourishing the pulse is because decades ago, when the lord of the White Moon Kingdom ascended the throne, all the warriors of the world gave gifts to the royal family of the White Moon, among which there were overseas strangers, who gave a book of the marrow washing and nourishing vein. This secret book is almost the strongest exercise Jiang Yu has ever heard. Now that this sword spirit actually said that he would, how could he not be surprised.

The sword spirit said disdainfully: "What kind of words, messy, if this mental method is compared with the bipolar sword heart, it will be simply tattered, I just see that your health is not very good, so I let you practice this first, and then train your body well." Otherwise, why waste time practicing it. ”

"Tattered!" Hearing this, Jiang Yuxin said that the tone of this sword spirit was too big, and the supreme mental method in his eyes was only tattered in the eyes of this sword spirit, and people in the world didn't know how many people dreamed of being able to get a glimpse of the skin of this mental method, but this sword spirit thought that it was just a waste of time to practice this mental method.

"What is your origin?" Jiang Yu asked the sword spirit a word that he had always wanted to ask in his heart.

The sword spirit was not in a hurry, as if he knew that Jiang Yu would ask this question, and said, "If you want to know my origin, it's simple, if you become my master, I will tell you my origin." ”

"Hmm, then what about me, what can I be considered your master?" Jiang Yu asked. The sword spirit quickly replied, "If I can transform and break out of the sword, I will recognize you as the master." ”

"Transform and take off the sword...... Are you saying you can transform into a human form?" Jiang Yuqi said.

Sword Spirit said: "What's strange, when your aura is in full bloom, I can also transform and take off the sword, and when that happens, I will naturally recognize you as the master." Okay, you can start cultivating, and I'll teach you the mantra. ”

"The Recipe for Washing the Marrow and Nourishing the Pulse", there are more than 700 words in the whole text, after the sword spirit was read three times, Jiang Yu almost remembered it all, just because Jiang Yu was already very perceptive, and his foundation was very solid, how to guide the luck and qi He was clear, if he let him recite the full text, he was afraid that he couldn't, but he had completely mastered the method of cultivation.

In order not to alarm Xiao Ruo, and also afraid that Xiao Ruo would disturb his cultivation, he came to the abandoned wing room alone, meditated and cultivated, he followed the essence of the marrow washing and nourishing veins, his left hand held the red dragon blood stone, and used the air points in the palm of his hand to lead the spiritual energy in the dragon blood stone into the body, the dragon blood stone is not a spirit stone, and its aura is also different from the ordinary, just introduced into the body, Jiang Yu felt that the aura passed by, like a fire, when the aura climbed from the palm of his hand to the shoulder, he felt that the whole shoulder was burned by fire, the pain was abnormal, but he gritted his teeth and didn't say a word。

"With a little perseverance, go ahead and let the qi in the Dragon's Blood Stone permeate your whole body. The sword spirit encouraged, and Jiang Yu nodded slightly. Continue to draw the aura from the Dragon's Blood Stone into your body. The aura in the dragon's blood stone entered the body, and everywhere it passed, the skin was as red as coals. Jiang Yu could almost feel the skin on his arm being burned off layer by layer by the fire.

Even though he was in pain, Jiang Yu gritted his teeth, opened all the prohibitions, and let that aura go all over his body, and for a while Jiang Yu felt that all he saw was fire when he closed his eyes. The joints of the whole body were rattling, as if they were about to be melted by fire.

"According to the recipe for cleansing the marrow and nourishing the pulse, refine and urge your aura to move through the whole body. The sword spirit urged like this, Jiang Yu endured the severe pain, tried to use the qi refining method in the formula, tried to refine the true qi from the dantian, and soon the first wisp of aura was born, but Jiang Yu felt that where was the aura, it was clearly another fire, he urged this "fire" to travel all over his meridians, igniting the meridians of the whole body, and then under the guidance of the sword spirit, he refined the "fire" one by one, and then gradually let himself be wrapped in this fire.

Jiang Yu didn't open his eyes, but he clearly knew that the skin on his body was gradually being burned away by the flames, and he could hear the sound of water ticking above the eaves. The snow melted, naturally not because the weather was warm, but because the snow on the house was also roasted because of my own practice.

After practicing, Jiang Yu could already feel the skin peeling off layer by layer, and the bones seemed to have completely melted. And at the same time as falling off, he could also feel that there seemed to be a new skin and bone born, practicing like this, unconsciously, the sky was about to dawn, and at this time Jiang Yu had gradually become accustomed to the baking of the fire, not so painful, but much more comfortable, when he was practicing. The sword spirit reappeared.

"Okay, let's practice here today and continue tomorrow!"

When Jiang Yu heard this, he was a little reluctant to accept the recruitment, and the fire slowly dissipated, Jiang Yu opened his eyes and found that it was almost dawn outside. He looked left and right, and was taken aback, and saw a large pile of ashes beside him. And the clothes on his body have long been gone. In the side room, it was as if it had been roasted by fire, and the walls were all black. The ground was full of greasy sludge.

"This is ......" Jiang Yu was a little surprised.

"That's the flesh and bones you burned. The sword spirit reminded, Jiang Yu looked down, only to realize that the skin and flesh on his body had almost completely changed. He was glad that he was practicing in a dilapidated wing room where there was nothing, and if he had practiced in his bedroom, I am afraid that the whole bedroom would have burned down long ago.

"The easy replacement of the skin and flesh on the outside is just the beginning, but the eight veins of the inner Qi Jing are not easy, and you have to practice for at least five days to do it. ”

"Five days ......" Jiang Yuxin said that the remaining five days must not be practiced at home, this set of mental methods according to the sword spirit said, the more you go to the back, the more powerful it should be, the fire will become more and more intense, burning your own house is a trivial matter, causing others to covet and suspicion, that is a big thing.

Jiang Yu stood up and found that his body was much lighter, and his spirit was so good that it couldn't be compared to before. Jiang Yu went back to his bedroom and changed into a set of old clothes to put on. When he finished tidying up, Xiao Ruo had already gotten up, and Xiao Ruo was also surprised when he saw that the wing room seemed to have been burned down, and Jiang Yu naturally said that it was due to the exercises he practiced. After having breakfast with Xiao Ruo, Jiang Yu told Xiao Ruo that she would go out to practice for five days and come back after five days, so that she didn't have to worry about herself. Although Xiao Ruo was surprised, she still nodded in agreement.

Xiao Ruo went out to work, and Jiang Yu brought some dry food, ready to go out to find a place to cultivate, but he suddenly found that the Heavenly Cry was gone, and he was immediately annoyed, rummaging back and forth for the sword, and at this moment, the sword spirit suddenly appeared.

"Are you looking for the sky to cry?Inner view of the dantian!" Under the reminder of the sword spirit, Jiang Yu immediately closed his eyes and meditated, looking inwardly at his own dantian. It didn't matter, and he was very surprised. Originally, in his dantian, there was a turbid atmosphere, and he couldn't see what was at all, but at this time, he looked inside the dantian, and in the sword dantian, like a furnace, the fire was flying, and in the midst of the fire, a sword was hung, and the sky was officially crying.

"Why is he here......" Jiang Yu asked in surprise.

The sword spirit said: "You are one with me, what's so strange here, if you want to use it, you can take it out at any time." ”

"No need. Jiang Yuxin said that Tian Weeping was such a precious sword, no matter where it was placed, he didn't feel safe, and now it was hidden in his body, it was the safest place, and no one wanted to take it away unless he died.

After getting ready, Jiang Yu went straight to his favorite cultivation place, which was the cave he had mined before. He needed a place that was inaccessible and relatively quiet to cultivate, and that mine couldn't be better. Jiang Yu went all the way to the mine, and at the entrance of the mine, he took off all his clothes and found a safe place to put it. Then he entered the cave alone, found a stable place, and began to continue to practice the heart trick of cleansing the marrow and nourishing the pulse.

This time was different from before, without the slightest need for the guidance of the sword spirit, Jiang Yu knew how to cultivate, and when he burned himself, it was not so painful. When Jiang Yu felt that his eight veins of the Qi Sutra had already burned, he suddenly felt that his throat was sweet, and a mouthful of blood spurted out violently. Jiang Yu opened his eyes and saw that the blood was swarthy, and there was a little red somewhere. The smell is unpleasant.

"Am I practicing wrong?" Jiang Yu asked the Sword Spirit Dao with some suspicion.

Hearing this, the sword spirit denied: "No, what you spit out is only the filthy qi in the meridians, don't make a fuss!"

Jiang Yu continued to cultivate, and to his surprise, unlike the expected flames, he felt that the heat on his body was getting weaker and weaker, and he thought that the aura of the dragon's blood stone was about to run out, but this was not the case. Although the light of the dragon's blood stone has weakened by most of it, the aura in it has not diminished. As if seeing Jiang Yu's confusion, the sword spirit said loudly: "The essence of the marrow and nourishing the pulse can burn the filth and impurities in your body, and now that the filth and impurities in your body have been gradually eliminated, naturally there is not much burning sensation, and if you practice to the point that there is no warmth at all, it means that you have practiced." ”

"I see!" Jiang Yu put down his sleep and forgot to eat, and wholeheartedly urged the fire in his body, burning the impurities and turbidity in his body, and vomited blood back and forth several times, each time less than the last. In the end, when he touched the dragon's blood stone with his hand, he didn't feel the slightest heat, but felt a little cold, he knew that he had already practiced. This time, he looked inside the dantian, and saw that the dantian was empty, except for a handful of heavenly weeping floating in it, there was nothing. At this time, he felt that his body was not only light, but also full of strength.

"This trick of cleansing the marrow and nourishing the pulse is really magical. "The sword spirit explained to him that his practice was not all of the marrow cleansing and vein cultivation technique, but only the third article in the marrow cleansing and vein cultivation formula, "Nirvana Recreation Chapter".

"Without the help of this Dragon's Blood Stone, you wouldn't have been able to practice this third article in just a few days. However, you don't have to covet the other exercises of this marrow cleansing and vein nourishing technique, this marrow washing and vein nourishing recipe is still useful in this third article, and the others are all dross. Even if you practice it all, you will live for four or five hundred years at most, and it will be useless. ”

"Live four or five hundred years more!It's useless!" The tallest old birthday star in the history of the entire Jiang family only lived less than two hundred, and for Jiang Yu, the ultimate martial arts that he could glimpse before was almost like that, hearing the words of the sword spirit, he really didn't know what to say, the sword spirit's eyes were above the top, and his mouth was full of big words, and he was used to it. But the sword spirit is really capable.

"It's just useless, the qi that is practiced is soft and lying on its stomach, where it is as sharp and pure as sword qi. I let you practice the third chapter, but I don't teach you the rest, that is, I use the third chapter to train you to have a good physique, but I don't let you gain a trace of aura, so that I can teach you the bipolar sword heart. ”

|“ No wonder I don't have a trace of aura in my dantian. Jiang Yu had tried to refine the aura with the third article before, but found that without the help of the dragon's blood stone, he couldn't raise his qi at all.

"Can I cultivate the Bipolar Sword Heart now?" Jiang Yu asked excitedly.

The sword spirit promised: "Yes, but your body has just been tempered, it is best to rest for a few days, but it is not too late for me to teach you." ”