After reading the Thousand Feathers and the Five Elements Formula, I took out Tsukidan from the storage ring. The Qi Returning Pill, as well as the spirit stone, were placed in front of him. These are all essential things for foundation building, and it would be a tragedy if the aura was insufficient during the foundation building period.

The so-called foundation building is to convert the gaseous spiritual power in the dantian into a liquid true element, and only when the foundation building period is reached, can it be regarded as stepping into the immortal cultivation realm, and the lifespan can also be increased to five hundred years. And the true element is different from the spiritual power, the true element is easier to control than the spiritual power, no matter how to say that the true yuan is also the transformation of the spiritual energy between heaven and earth little by little, which belongs to a part of his own body; And spiritual power is the spiritual energy between heaven and earth gathered into one's dantian, which can only be regarded as borrowing, and cannot be controlled as you like. Therefore, building a foundation is the first hurdle for immortal cultivators.

I looked at Tsukidan in front of me. Hui Qi Pill, as well as spirit stones, I gritted my teeth, picked up a Zhuji Dan and swallowed it, and then picked up two Hui Qi Pills and held them in my mouth, holding two medium-grade spirit stones in my hands. Then, according to the foundation building method of the Five Elements Formula, he began to cultivate.

My mind calmed down to my dantian, and I controlled the spiritual power of my dantian and began to cultivate according to the mental method of building the foundation. At this time, the Tsukidan I swallowed also began to exert its medicinal power, and I saw a huge spiritual power rushing straight towards my dantian, and a strong pain came from the dantian.

Feeling the pain, I gritted my teeth and trembled and endured. Because I know I can't bear it, then I'm finished. I controlled this huge spiritual power to operate little by little according to the meridian route map.

I don't know how long it has been, maybe a few hours, maybe a few days, but in short, I think it's been a long, long time. I was free to control the flow of that spiritual power in my meridians, and I knew it was time to build the foundation.

The first step is to expand the meridians and dantian, I gritted my teeth, and secretly thought: If you don't succeed, you will become benevolent, and whether you succeed or not, it's a matter of doing it in one fell swoop. Thinking of this, I controlled all the spiritual power in the dantian to start running along the meridians.

A heart-rending pain ensued, and I gritted my teeth and continued to control the flow of spiritual energy in my meridians. My mind also followed the route of this spiritual power, and I saw that the tendons and veins were constantly breaking and repairing under the impact of this spiritual power, and the meridians were expanding little by little. After an unknown amount of time, the pain in the meridians slowly subsided, and my heart was happy because I knew that my meridian expansion was almost successful.

After a long time, after the pain in the meridians disappeared completely, I quickly checked my meridians, and at first glance, I was shocked, I didn't expect the meridians to expand so much. If it used to be a small stream, now it is a big river. Holding back the excitement in my heart, I began to expand my dantian.

Before expanding the dantian, I checked my spiritual power and found that my spiritual power had been consumed by nearly one-third, so I hurriedly swallowed one of the two receipts contained in my mouth. Not long after swallowing the Hui Qi Pill, it turned into a stream of spiritual power and combined with the spiritual power of the dantian. After the combination of this spiritual power, I found that the spiritual power was about to reach a saturated state, so I began to expand the dantian.

I kept spreading this spiritual power to the surroundings of the dantian, and the dantian slowly expanded under the diffusion of this spiritual power. Of course, a feeling of pain followed, and I felt this pain and my cold sweat came down. But I knew that I had to persevere, and I endured the pain and continued to spread my spiritual power around the dantian. Slowly, the pain began to subside, and I almost fainted. Feeling that the pain in the dantian was beginning to weaken, I checked the spiritual power of the dantian and found that the spiritual power consumption was very large. Seeing this, I knew that my spiritual power was insufficient, so I swallowed the last Qi Returning Pill in my mouth, and at the same time began to absorb the spiritual energy in the spirit stone in my hand.

You may ask, why do you still have to restore spiritual power to continue to expand the dantian. In fact, at this time, it was because of their lack of spiritual power, not because the limit of the dantian had arrived, and many immortal cultivators did not know this, so they missed an important opportunity to expand the dantian in vain. After the Hui Qi Pill turned into spiritual power, I continued to expand the dantian, and at the same time absorbed the spiritual energy in the spirit stone in my hand as a follow-up to expand the spiritual power of the dantian.

As I expanded my dantian again, the pain in my dantian struck again, and it was even stronger than the first time. As the pain in the dantian increased step by step, I finally fainted gloriously under this pain. I don't know how long it took, I woke up from the coma, I quickly checked my dantian, and found that the dantian had expanded I don't know how many times. At this time, the dantian was full of spiritual power, and I knew that I was about to start the final step of foundation building, transforming the gaseous spiritual power into a liquid true element.

I woke up from the meditation first, and then used the medium-grade spirit stones to set up a five-element spirit gathering array around my body, and then took these five qi recovery pills in my mouth, and took two or three spirit stones in each hand, and then entered the meditation again.

As I entered the meditation, my mind sank to the dantian again. Seeing that the dantian was full of spiritual power, I silently recited the foundation building method of the Five Elements Formula, and the last step of foundation building began after the person.

The last step of foundation building, which is simple and difficult, is to convert the gaseous spiritual power into the liquid true element, which is actually to constantly compress the spiritual power. Of course, it's not that simple, it depends on the person's control. When compressing, you must always prevent the rebound of the spiritual power of compression, for example, you finally compress a cubic meter of gaseous state to a cubic decimeter gaseous state, but you can't control it well, and this cubic decimeter gaseous state rebounds to a cubic meter of gaseous state, and it will explode. Therefore, when it comes to building the foundation, the last step is the most critical time.

As my mind calmed down, I also began to compress the spiritual power of the dantian, so my forehead compressed, and the spiritual power of the dantian began to gather in the middle of the dantian. The sweat on my forehead kept falling. Just as I heard the "boom", the spiritual power that I had finally gathered together dispersed, and the explosive impact directly shook the dantian, and I vomited a mouthful of blood, and my face turned pale all of a sudden. I didn't care about wiping the blood from the corners of my mouth, and immediately controlled the spiritual power of the dantian and began to repair the damaged dantian, and I don't know how long it took, I finally repaired the damaged part of the dantian, but after checking the spiritual power of the lower dantian, I found that there was less than half of it left, so I hurriedly swallowed two Huiqi pills in my mouth, and at the same time absorbed the spirit stone in my hand.

After half an hour, under the double recovery of the elixir and the spirit stone, the spiritual power of the dantian was finally filled, and I also began the second compression of spiritual power.