"It seems that the spiritual energy on the earth has not completely disappeared, at least some are still retained underground."

Another medium-grade spirit stone was picked up from the ground, and Fang Yi's face was about to burst into laughter. After more than two days of mining, Fang Yi obtained more than 200 low-grade spirit stones and more than 30 medium-grade spirit stones. Now his mustard bag is almost filled with spirit stones.

This also made Fang Yifu think. Although there was no spiritual energy in the air on the surface of the earth, there was still spiritual energy in the ocean and underground. The closed environment slowed down the passage of spiritual energy. This is the case with the Arctic Ice Cave, and the ore spiritual vein in front of him should have been formed in this way.

Fang Yi entered the Taoist world from the beginning, and he was basically alone. He had never enjoyed the benefits of the master. He was really afraid of being poor. No matter how many spirit stones there were, he would not bother to have too many, so he almost never sleeps for the past two days and became a happy little miner in the mine.

"Um?"

Just as Fang Yi used the flying sword to clear a rock wall, his face suddenly changed, his mind was shocked, and he quickly used his spiritual sense to control the flying sword to come to him. When he looked at it, Fang Yi suddenly felt distressed because there was a gap that was much larger than the rice grains on his natal flying sword.

Fang Yi's plane was refined with spiritual consciousness and was always in the Dantian nourishment. It can be said that it is connected to his mind. The flying sword was damaged less before, so Fang Yi didn't feel anything, but this time, Fang Yi's mind was implicated, and it felt like he was hit hard in front of his chest.

"You can't continue to mine with flying swords."

After taking a few deep breaths, Fang Yi adjusted the slightly disordered aura in his body. He found that after the flying sword was damaged this time, he used his spiritual sense to command the flying sword and felt a slight stagnation. Fang Yi knew that if he continued, it would be possible that the flying sword could not be repaired.

"The Wuliang Heavenly Lord, you can use a flying sword, just a stone crusher."

Fang Yi put the flying sword into the Dantian and raised it. He turned around and wanted to go back to find the stone crusher. However, just turned around, Fang Yi suddenly turned his head suddenly, "What did you dig just now? It actually damaged the flying sword."

Before, Fang Yi felt sorry for the flying sword, but he didn't think so much, and he didn't feel the spiritual energy radiating from the spirit stones around him. But now Fang Yi reacted. It was the flying sword that was infused with his spiritual power. Even diamonds could not damage the flying sword so much.

Thinking of this, Fang Yi quickly squatted down and searched through the pile of rocks on the ground. Just as a stone was lifted up, Fang Yi suddenly narrowed his eyes because a dazzling blue light appeared under the stone.

In the mine path where you can't see your five fingers, Fang Yi basically used his spiritual sense to see things. The sudden blue light made Fang Yi's eyes a little uncomfortable. He covered his eyes with his hands, and Fang Yi's spiritual sense observed the luster.

"Is this also a spirit stone? Why doesn't there be spiritual energy?"

The blue light was emitted by a piece of jade that was the size of a baby's fist and emitted a dark blue color throughout, but Fang Yi's spiritual consciousness found that the blue jade had no leakage of spiritual energy. From the outside, it looked like a blue stone.

He reached out to pick up the blue jade, and Fang Yi pinched it hard, but his fingers hurt, and the jade did not change much. Fang Yi understood that this jade should be the culprit for damaging his natal flying sword.

"What kind of thing? How could it be so hard?" Fang Yi looked at the jade in confusion, his heart moved, and he started to use his technique. A suction force suddenly came out of Fang Yi's palm.

"Hmm? This, what kind of spiritual energy is this?!"

Fang Yi just made some attempts and did not expect to draw spiritual energy from the jade. But what he didn't expect was that as the exercises were running, a trace of spiritual energy was sucked into his body along with the meridians on Fang Yi's arm.

Compared to Fang Yi's previous practice of using the more docile spiritual energy in the spirit stones, this trace of spiritual energy was extremely cold. After entering into his body along Fang Yi's meridians, Fang Yi only felt that half of his body seemed to be frozen, and he could not move even a finger.

In order to resist this cold, the spiritual power in Fang Yi's body spontaneously circulated and wanted to drive out the silk of spiritual energy, but for some reason, the silk of spiritual energy actively integrated into Fang Yi's spiritual power and walked within the eight extraordinary meridians in Fang Yi's body.

"Click!"

After the trace of spiritual power was completely integrated, Fang Yi suddenly heard a slight sound from his chest, as if something had been opened. After careful sensing, Fang Yi's face couldn't help but show a strange look, because he found that he was not doing anything, and the fifth meridian in his body was opened. He is now at the fifth level of Qi training stage.

Moreover, after the breakthrough, Fang Yi's meridians were swollen and uncomfortable. At this moment, the trace of spiritual energy suddenly wrapped around the natal flying sword raised in the dantian. Fang Yi, who was in an inward state, clearly saw that his damaged natal flying sword was being quickly repaired.

After about four or five hours, the swelling feeling of Fang Yi's meridians gradually disappeared, and the cold breath was completely merged with the spiritual power in his body. He stretched out his arms and legs, and Fang Yi found that he could truly move freely at this time.

"Wuliang Tianzun, what's going on?"

Fang Yi looked puzzled. Although he repeatedly used up his spiritual energy in the mine for the past two days and then replenished it, which made some progress in his cultivation, there was still a certain gap between the advancement to the fifth level of the Qi Training Period. Fang Yi could not have expected that he had just incorporated a trace of spiritual energy with cold breath and he actually broke through.

"What level of spirit stone is this? Is it a top-grade spirit stone?" Looking at the spirit stone in his hand, Fang Yi's eyes showed a thoughtful look. Although the trace of spiritual energy just now contained a cold aura, the purity of spiritual energy was something Fang Yi had never seen before.

However, Fang Yi didn't dare to try again now because he felt that if he absorbed the spiritual energy from this blue jade, the meridians in his body would definitely burst because he couldn't bear it. With his current cultivation level, it was already the limit to resolve that trace of spiritual energy.

"Is this the best spirit stone, so it has that cold breath?"

Fang Yi's face seemed a little gloomy under the blue light. He learned some grading of the spirit stones from Song Tianyu, Le Kai and others, but the upper, middle and lower third-grade spirit stones did not seem to meet the characteristics of this spirit stone.

In fact, Fang Yi mistakenly thought the spirit stone in his hand was a top-grade spirit stone, but he was wrong. This was just a top-grade spirit stone. The reason why Le Kai and Song Tianyu and others had never mentioned it was because they had never seen the top-grade spirit stone. They were just heard from others through rumors.

In the world of cultivators, low-grade spirit stones are the most common. The most produced in the spirit stone veins is the low-grade spirit stones. During the Qi training period, you can use low-grade spirit stones to practice. However, the spiritual energy in the low-grade spirit stones is somewhat impure, and the reserves of spiritual energy are relatively small, which is not enough for cultivators in the Qi training period to practice for a long time.

Cultivators in Qi training stage can use medium-grade spirit stones to practice, and the effect is much better than those in the lower-grade spirit stones. However, the number of medium-grade spirit stones in the world of cultivators is very small, and many elders in the foundation-building stage may not be able to allocate several pieces. This is undoubtedly a luxury for ordinary cultivators.

Medium-grade spirit stones and low-grade spirit stones will both scatter weak spiritual energy to the outside world, but the top-grade spirit stones lock the spiritual energy. Unless it is absorbed by external forces, the spiritual energy in the top-grade spirit stones will not overflow.

However, the number of top-grade spirit stones is very small. A spirit stone vein with rich reserves can only mine 10 or 20 pieces, and the few are only a few or none. Not many people have seen it before. Even if it is mined, it will be sent to the sect for proper preservation, and ordinary disciples will not see it at all.

Therefore, Song Tianyu and Le Kai did not know that the top-grade spirit stones contain attributes. The spiritual energy in the spirit stones is in line with the five attributes of metal, wood, water, fire and earth. If you want to absorb the extremely pure spiritual energy from the top-grade spirit stones, your cultivation must reach the foundation-building stage.

Although cultivators above the Foundation Building Stage with different spiritual root attributes can use high-grade spirit stones to practice, if there is a high-grade spirit stone that matches the attributes, the speed of cultivation will undoubtedly be much faster than that of the high-grade spirit stones that do not match the attributes.

Moreover, the top-grade spirit stone has another effect, that is, after the cultivation level reaches the peak of the Qi training stage, taking the foundation-building pill and using the top-grade spirit stone can use the pure spiritual energy in the top-grade spirit stone to cleanse the meridians and increase the chance of success in foundation-building.

However, the top-grade spirit stones are extremely precious in the world of cultivators. Once they are mined, they are sent to the ancestors who are hidden behind the scenes of the major sects in the world of cultivators. Even the heads of the sects have no chance to use them, let alone ordinary disciples. Many foundation-building cultivators in many small sects have never even seen the top-grade spirit stones.

"If you can meet your master in the future, you must ask your master what level of spirit stone this is."

Although he couldn't see through the spirit stone in his hand, Fang Yi knew that it must be a good thing and should not be shown easily. Thinking of this, Fang Yi quickly put away the spirit stone in his hand, as if the miners were still like others.

"The flying sword cannot be used for the time being, so use the stone crusher. Anyway, the time is almost done. Dig for a long time and leave!"

After collecting the spirit stones, Fang Yi estimated the time. It was almost three days. Fang Yi didn't want to be blocked by the people of Song Tianyu Sect in the mine. Even if he was unwilling to give up, Fang Yi knew that he would leave as soon as possible.

The speed of excavation was extremely slow when Fang Yi dug a medium-grade spirit stone in half a day. Knowing that he could not delay any further, Fang Yi returned to the ground and buried the explosives above the mine track he dug out.

After a loud bang, the explosives did not cause much noise in the hard frozen ground, but a pit several meters square appeared.

But after going down to the mine cave to check, Fang Yi found that the soil on the rock wall above the mine road he and Song Tianyu dug had completely collapsed. Even if he spent several times the effort to clean it up again, he would not see the traces they left before.

"Hehe, my buddy has eaten the meat. As for how much soup is left, I won't care."

After filling the pit on the ground, Fang Yi took out a map left by Song Tianyu and looked away. He was not planning to leave Siberia through Song Gen, but wanted to directly run through the Sino-Russian border and return home.

In fact, Fang Yi still thought of this spirit stone vein simply. Although the spiritual energy of heaven and earth disappeared from the earth and the spiritual energy of the mineral vein continued to flow, the number of spirit stones decreased, but this mineral vein still had thousands of low-grade spirit stones and hundreds of medium-grade spirit stones reserves.
Chapter completed!