Tianling Fort is said to be a fortress, but it is very different from the kind of fortress with high and strong barriers, it is better to say that this Tianling Fort is a big town. There is no wall outside Tianling Fort, and there are four roads in the southeast, northwest and northwest, which can go directly to the fort.

There are more than 2,000 people in Tianling Castle, and there are only about 50 people who really have spiritual roots and can cultivate immortals, and the proportion is quite different. Nie Fei finally found some satisfaction, at least, he was among the fifty or so people. Among these more than fifty people, the highest cultivation is the castle master Lu Bowen, who has reached the tenth layer of the Qi refining period, but has never succeeded in building a foundation. In addition, there are two deputy castle masters and deacons, both of whom are ninth layers of qi refining. These three people can be regarded as the three people with the highest cultivation in Tianling Castle.

Below, there is no one who cultivates to reach more than six floors. Nie Fei himself, he had already carefully checked himself on the road, and there was only a poor layer of cultivation, which belonged to one of the five people who had cultivated to the first level among the more than fifty people. As for the spells that Nie Fei mastered, there was only one palm fire. Nie Fei had experimented with it, and when he used the exercises, the palm fire was born from the palm of his hand. Looking at the flames that were like matchsticks, constantly beating, Nie Fei couldn't help laughing and crying. What's the use of such a small flame? Do you light a cigarette? It's a pity that I don't smoke, otherwise it's nice to carry such a lighter with me.

But for Nie Fei, who came from modern society, he was still surprised to look at the firefly light burning for no reason in the palm of his hand. He found that the flame was in the palm of his hand, but the skin in the palm did not feel burning. Could it be that the temperature is not high? Nie Fei tried to set fire to a dead wood, and to his surprise, after more than ten minutes of continuous burning, he really set the dead wood on fire. Nie Fei was very happy, it can be seen that don't look at this flame, the temperature is still very high.

Don't look at the Tianling Castle as if it had no protection, with Nie Fei's memory, he knew that within the scope of the Tianling Castle, there was a large array that protected the Tianling Castle, but it was just invisible to the naked eye. In other words, his current cultivation has not been reached, and he can't see the fluctuations of the aura of the great array. It is said that this large array can withstand the attacks of monks equivalent to the Jindan period.

Monks of that realm, not to mention that people have never seen them, and they have rarely even heard of them. It is said that there are two Jindan monks in the Fenglin Sect, but they have only heard of them, and no one has ever seen them. Gradually, many people believe that the Jindan period is just a legend, and in this world, the monks of the Jindan period do not exist. And then some people come to the conclusion that it is impossible for a person to cultivate to the Jindan stage. Therefore, according to this logic, the large array covering the Heavenly Spirit Fort is impossible to be broken at all, as long as it is in the large array, it means absolute security. The Great Array was like a sturdy turtle shell, reassuring everyone.

But Lu Bowen often said to Nie Fei earnestly: "In this world, there are monks in the Jindan period, not to mention the monks in the Jindan period, even if they are monks above the realm of the Jindan period, there are as many as cows. Then, Lu Bowen would talk as a cliché: "Therefore, you have to cultivate hard and work hard to improve your cultivation." In this world, there is no absolute security, only one's own improvement can obtain security. ”

In the past, Nie Fei felt that these words were Lu Bowen's alarmism, and they were used by Lu Bowen to scare him in order to motivate him to cultivate. Therefore, after Nie Fei heard it, he never took it to heart.

......

After entering the Heavenly Spirit Castle, Nie Fei came to his residence. Although Nie Fei's memories from the past and Nie Fei already knew a lot about his residence, as soon as he entered the courtyard, he couldn't help but be curious and looked carefully.

At first glance, this small courtyard is nothing special, with two wooden houses and a straight road in the middle, and some medicinal herbs planted on both sides. But Nie Fei knew that this place was carefully selected for him by Lu Bowen. Because the aura here is very strong, in the entire Heavenly Spirit Castle, there is no other place with a stronger aura than here. Cultivating in such a place is much faster than cultivating in those places where the spiritual energy is barren. In addition, the herbs grown here are more effective than those grown elsewhere.

Spiritual energy is the foundation of cultivating immortals, and this place with strong spiritual energy is undoubtedly the best place for cultivation in the entire Heavenly Spirit Castle. In this place, Lu Bowen did not enjoy it himself, nor did he give it to his only son Lu Qing, but let Nie Fei practice here, which shows Lu Bowen's preference for Nie Fei.

......

Nie Fei rested in the room for a while, and then began to practice immortality. Longevity Gong, the name of this exercise sounds extraordinary, but it is actually just a basic exercise for cultivating immortals, which is used to absorb aura. This exercise, passed down from the Fenglin School, each sect has its own set of exercises to absorb aura, and the names are also different, but the effect of the exercises is basically the same, which can absorb the aura from the outside world, and can also absorb the aura in the pill swallowed in the abdomen.

Nie Fei smiled bitterly, such a basic technique actually had such a powerful and domineering reputation. But when he thought about it, cultivating immortals is based on spiritual energy, and isn't this exercise the basis of all exercises? It is not an exaggeration to call such a majestic name.

After turning his mind a few times, he sat down cross-legged, closed his eyes, folded his left and right hands together, inhaled deeply and exhaled, guarded the sea of qi, eliminated a qiē distracting thought, and entered the realm of self-forgetfulness. At this time, the Changsheng Gong was working in his body.

I don't know how long it took, Nie Fei exhaled deeply, slowly opened his eyes, pressed down with his palms, and stood up. At this time, he realized that the sky outside was hazy, and it was about to be completely dark. He remembered that he had started cultivating the Immortal Gong in the afternoon, so it had been at least three hours. For three hours, six hours, he sat still. Strange to say, I didn't feel a trace of tiredness all over my body.

Nie Fei was pleasantly surprised, this method of cultivating immortals was really extraordinary. "By the way, I'm going to check it, the cultivation of these three hours, the aura has increased a little. Nie Fei thought, introspectively qihai. What made him very disappointed was that the aura in the sea of qi was still the same as it was, and there was no sign of growth. "Hey, it seems that my three hours have been in vain, and my aura has not increased at all. ”

He actually didn't know that cultivating immortals was originally like this, it was a long and boring process, especially in the beginning stage, storing spiritual energy was the most abrasive, only after accumulation of time, could the growth of spiritual energy be perceived, and those who did not have great perseverance and determination would not be able to pass this level at all. If it was really as he thought, he could detect the growth of aura after only three hours of cultivation, then he could really become the first person since ancient times, and none of the countless geniuses in the immortal cultivation world from ancient times to the present could compare to him.

Disappointed, Nie Fei stood up and came to the courtyard.

Except for one road, all the other places in the courtyard are planted with more than ten kinds of medicinal herbs. These herbs are all materials for refining various pills.

Nie Fei casually took two steps, squatted down, and took advantage of the hazy sky to carefully observe a medicinal herb with five dark green leaves in front of him. He knew that this herb was called the Soul Relief Grass, and after it grew into five leaves, it was a finished material, and it was the main material for refining the Void Spirit Pill. Each Void Spirit Pill contains a large amount of spiritual energy, and after swallowing, the spiritual energy can be absorbed through the guò exercises.

It stands to reason that the Void Spirit Pill has such an effect, wouldn't that be able to greatly speed up the cultivation process of immortal cultivators? In fact, the Void Spirit Pill can indeed speed up the cultivation process, especially for immortal cultivators who need to absorb spiritual energy during the Qi refining period. But greatly accelerated, but it is impossible to talk about it. Everything is not perfect, there must be advantages and disadvantages, and the same is true of this Void Spirit Pill. It turns out that this Void Spirit Pill has another side effect, that is, it is very toxic.

This kind of toxicity cannot be eliminated overnight, and it often takes half a month to completely eliminate the toxicity. Therefore, this account is easy to settle, swallowing a Void Spirit Pill can increase the aura of ordinary cultivation for twenty days, but it will take at least half a month of effort to dissolve the toxicity, and during the period of dissolving the toxicity, it is impossible to absorb the aura at all. Besides, this half-moon is still the shortest date, and it is divided into different people, some people may need seventeen or eighteen days, and even more than twenty days. So after all, the time really saved is only one or two days. In addition, there is another point, that is, the price of this Void Spirit Pill is extremely high, and ordinary immortal cultivators can't afford it at all.

Even if they can afford it, there are many people who don't want to suffer from the pain of dissolving the toxicity, and would rather not save that day or two. Only a very small number of people swallowed the Void Spirit Pill to speed up their own cultivation process.

The reason why the benefits and toxicity of the Void Spirit Pill coexist is all due to the Soul Relief Grass. As a fairy grass, during the growth period, the spirit grass can absorb the aura and store it in the grass body. It wasn't until five leaves grew and the aura absorbed reached the limit. But there is another point, that is, this spirit relief grass is extremely poisonous, if it is swallowed directly, not to mention the immortal cultivators in the Qi refining period, even if it is an immortal cultivator in the foundation building period, they will definitely be poisoned on the spot.

Later, after countless generations of immortal cultivators, they were finally able to refine the Spiritual Herb into a pill, which was to use the remaining herbs to dissolve the toxicity of the Spiritual Herb, so that the toxicity was not enough to kill the immortal cultivator on the spot, and then slowly excrete the toxicity from the body through the guò exercises. However, it is simply impossible to completely dissolve the toxicity of the Soul Relief Grass when making the Void Spirit Pill.