The night envelops in layers.

    Chen Yun in the dormitory was particularly excited.

    It's done boiling!

    The Foundation Establishment Soup has finally been brewed!

    He was only excited for a short while before calming down.

    "The Foundation Establishment Soup has been brewed, but I'm not sure if it can help me establish the foundation."

    Chen Yun steadied his composure and picked up the "100-Day Foundation Establishment Practice" given by Wang Zi Xi to read.

    He must understand the 100-Day Foundation Establishment method and only then, after taking the Foundation Establishment Soup, can he determine if he has succeeded.

    The topmost method of "sealing and repairing" is useless for Chen Yun, so he directly skips it.

    He looked at the flow of Qi.

    The top row reads: "So-called vital energy refers to the foundation establishment practice."

    Chen Yun studied the martial arts method, as it was in classical Chinese, he needed to carefully analyze the meaning of each sentence.

    "The starting point for the foundation establishment practice generally begins from the lower dantian. Practitioners will first feel an increase in the movement of their intestines within the abdomen during cultivation, frequent release of gas, um, that is, passing gas. Then, there will be phenomena such as heat in the dantian and lower abdomen, which is called 'receiving Qi'."

    He has a general understanding of the first step.

    Chen Yun looked at the second step again: "Once Qi is received, true Qi will gradually accumulate during the process of cultivating energy. Following that, true Qi will run through the body according to its own control. Then, when true Qi passes through gas stagnation points, various different reactions will occur. These gas stagnation points have not yet formed into diseases, but if they are not dealt with, they will mutate in the future and block the meridians, preventing true Qi from normally circulating in the meridians. It needs to rely on more powerful true Qi to break through this is the whole process."

    He has a rough idea in his mind.

    As long as he knows what kinds of reactions normal Qi flow will produce, it's enough.

    Chen Yun didn't waste any more time, pouring a small amount of the cooled medicine juice into another small bowl. Then, he poured some of the boiling medicine juice from the small copper furnace into the small bowl.

    One cold and one hot, blending with each other.

    He checked the temperature and determined that it wasn't too hot before picking it up to consume.

    Gulped, the medicine juice went down his throat.

    A bitter taste came through.

    Chen Yun almost spat it out, but for the sake of successfully establishing the foundation, he still endured and drank it down.

    Soon, the small bowl of medicine juice was swallowed.

    Instinctively, he tried to sit in accordance with the methods described in the martial arts manual.

    Who would have thought that before the movement even began, the medicinal power within his abdomen began to take effect.

    Chen Yun felt his intestines moving slightly, then he couldn't help but "farted" with a sound of "puff".

    A stench spread uncontrollably.

    He couldn't help covering his nose with his hand.

    However, at this moment, Chen Yun felt a faint warmth rising from the lower part of his lower abdomen.

    This warmth was different from the feeling of drinking warm or hot water; it did not have any discomforting heat, but instead gave a very comfortable sensation.

    "Um? Is this considered 'gaining Qi'?"

    Chen Yun, who was trying for the first time, naturally didn't know if it was "gaining Qi".

    However, he still sat down according to the instructions in the manual.

    However, after sitting down, he felt a bit awkward. The book had recorded the method of Qi flow, but he didn't know where the meridians were located, so he couldn't actively circulate Qi.

    For a moment, Chen Yun furrowed his brows.

    At this time, the warmth in the lower abdomen continued to increase.

    At first, he didn't notice much, but before long, the warmth gradually became hot and dry.

    As the sensation of heat appeared, something miraculous happened spontaneously.

    Chen Yun felt that the heat began to move from the lower abdomen downward.

    The human body, in addition to the twelve main channels, has the Ren and Du meridians.

    The Ren and Du meridians are generally categorized under the Eight Extraordinary Channels and are not part of the twelve main meridians.

    Of course, some academic theories merge the Ren and Du meridians with the twelve main meridians, calling them the fourteen main meridians.

    Chen Yun had some understanding of this aspect in his previous life, but he didn't know the exact location of the fourteen main meridians in the human body.

    But in this moment, he had a vague understanding.

    Because the warmth separated from the dry heat began to spread throughout the body's limbs and organs, and it was divided into fourteen channels.

    Firstly, the Ren meridian, spreading up and down in two directions.

    Chen Yun had memorized the martial arts manual by rote, and he had a vague idea that the two directions were respectively Shimen (Stone Gate) and Yin Jiao (Yin Intersection).

    Regrettably, the warm-heated Qi flow passed through these two acupoints and stopped, as if there was an obstacle. It seemed to be struggling to break through.

    The Du meridian was also in a similar situation, with the warm-heated Qi flow stopping at the Xunshu (Suspension Channel) acupoint when rising and at the Mingen (Commanding Gate) acupoint when descending.

    However, the other meridians were different.

    For example, the Foot Shaoyang Liver Meridian, Chen Yun felt the warm-heated Qi flow rising to the Daiyin (Collar Channel) acupoint and descending to the Wu Su (Five Palms) acupoint before slightly stopping for a moment. Then, it once again headed towards Jingmen (Four Gates) and Wei Dao (Venus Channel).

    Similarly, the Foot Jueyin Liver Meridian, Hand Taiyin Lung Meridian, etc., were also like this.

    "Oh, so the locations of the fourteen main meridians are in these parts of the body."

    Chen Yun had a better understanding now.

    This time, instead of hurrying to practice as instructed in the manual, he quietly felt the flow of Qi.

    At first, he only felt a bit of tingling, but there was really nothing else to feel.

    However, when the warm-heated Qi flow came to the Yueyang (Sun and Moon) acupoint of the Foot Shaoyang Liver Meridian, a sharp pain arose.

    "Oh! It's like needles pricking me!"

    It was just a moment, but Chen Yun was so painful that sweat started to bead up on his forehead.

    The true Qi also stopped, seemingly trying to break through something.

    Although the piercing pain was unbearable, Chen Yun gritted his teeth and persevered.

    He knew that this should be what is referred to as "Qi attacking the pathological condition".

    This made Chen Yun feel somewhat puzzled. "According to the manual, Qi attacking the pathological condition is divided into three parts. The first part is finding the disease, that is, when the Qi flow is obstructed by strong resistance and the internal energy is not enough to open the pathological condition, the true Qi will automatically change its route. When another route encounters strong resistance again, it will change its route again and again, so as to circulate in this way and on the one hand, it will dilate all small pathological conditions that can be opened with sufficient energy, and on the other hand, it also exposes one by one those pathological conditions that cannot be opened temporarily due to insufficient energy."

    This is only the first part of Qi attacking the pathological condition.

    The second part is called "turning diseases." The first stage of finding diseases makes most of the meridians more open, and the cultivator's energy is strengthened through continuous practice. Then, it directly attacks the found pathological conditions with greater force, making the symptoms of various diseases more prominent, and bringing all kinds of diseases to light. This is the process of turning diseases.

    Finally, the most critical "retreat diseases" stage occurs after a period of resistance between pathological conditions and true Qi. As the cultivator continues to cultivate, the energy in their body is constantly replenished. Under the continuous impact of true Qi, pathological conditions gradually dissolve, diminish, and even completely disappear. The symptoms of various diseases in the cultivator's body will also gradually lighten and disappear.

    "How come after taking the foundation-setting soup recorded in the 'Great Luo Elixir Soup,' I directly experienced Qi attacking the pathological condition? And it looks like the true Qi won't rest until it opens up the pathological condition, which is quite hard to understand."

    Chen Yun indeed couldn't understand.

    However, he knew that the foundation-setting soup was effective, so he didn't try to stop the flow of true Qi with his own qi.

    As the Qi flow continued.

    Chen Yun gradually felt various different sensations coming from different parts of his body.

    Besides the pain at the Yueyang acupoint, a numb feeling spread from the Jiu Ma (Cordate) acupoint of the Foot Jueyin Liver Meridian.

    Additionally, there was a sense of weight rising from the Yun Men (Cloud Gate) acupoint of the Hand Taiyin Lung Meridian.

    Chen Yun silently endured the pain.

    Soon, the true Qi stagnant for a long time at the Yun Men acupoint moved again.

    When the true Qi flowed again, he suddenly felt a sense of comfort from the Yun Men acupoint, and even a feeling that all muscles, bones, and skin membranes had suddenly relaxed.

    "It seems that this is the opening of the pathological condition."

    Chen Yun didn't expect the foundation-setting soup to be so miraculous. It only took a moment to open up a pathological condition.

    He was quite delighted and continued to feel.

    Time passed minute by minute.

    About half an hour later, the drug's effect gradually subsided, and the warmth inside his body also dissipated.

    Chen Yun felt that his whole body felt relaxed and comfortable.

    "It's no wonder that cultivators need to build a foundation. It seems that even my seemingly healthy body has so many hidden pathological conditions."

    He pondered.

    Chen Yun then carefully analyzed his progress today, "From the feelings just now, I can roughly tell that the true Qi has opened up about a quarter of the pathological conditions within me. However, not a single acupoint on the Ren and Du meridians has been opened, which is somewhat regrettable."

    Chen Yun estimated that after taking the foundation-setting soup four or five times, he would be able to achieve foundation-building success.

    Following a calculation based on the frequency of seven days per time, it should take about a month and a half.

    Of course, this is the ideal scenario.

    After all, no pathological condition on the Ren and Du meridians has been opened.

    If it's not ideal, Chen Yun doesn't know how long it will take.

    There was also something that somewhat regretted him.

    "Although the foundation-setting soup will produce true Qi within the body, I don't know how to store this energy. It seems that I can only wait until I learn longevity techniques to understand how to store it."

    Chen Yun was not disappointed. First, he would make every effort to open up all the pathological conditions.

    Maybe, with his outstanding performance, he would be noticed by Zhongli Quan?