According to the classics left by the predecessors in the cave, Xiuzhen is divided into nine levels, namely Qi training, Qi transformation, Jindan, Yuanying, out-of-body, distraction, integration, tribulation, and Mahayana. The Qi training period, as the name suggests, is to practice Qi for one's own use, absorb the aura of heaven and earth and store it in one's own body, and open up the meridians of the whole body. Because this is only the basic stage of cultivation, and the transformation of the human body is not large, so if you can't break through this realm, then you still belong to ordinary people in essence, and your lifespan has not changed much, just slightly longer than ordinary people, and your lifespan can basically reach between 100 and 120 years old.

When the aura in the dantian and meridians reaches a certain limit, and at this time, it is no longer possible to absorb the aura and store it, so it is necessary to find a way to refine and compress the aura into a drop of liquid, so that it enters the qi transformation period, so some people call him the jade liquid period, which is basically the threshold of cultivation. After the aura became liquid, the volume was reduced countless times, and he could continue to absorb the aura for cultivation. Cultivators who have entered the Qi Transformation Stage are already different from ordinary people, and their qualities have been strengthened, and their lifespan can basically reach between 180 and 200 years old.

When the liquid aura in the dantian also reaches the limit, it is necessary to continue refining and compressing, and the quantitative change is transformed into a qualitative change, and finally compressed into a solid state, forming a golden pill in the purple mansion, and reaching the golden pill stage. Only after entering the Jindan period can it be regarded as officially crossing the threshold of cultivation, and the lifespan will be nearly doubled again, and it can generally exceed three hundred years old.

Jindan is equivalent to a fetus, when Jindan reaches a certain realm, Dan crushes the baby into a baby, and enters the yuan infant period. Only those who have reached the Yuan Infant Stage can be called true cultivators. Many people say that cultivating a primordial infant can lead to immortality, but it is actually wrong, this is only relative to ordinary people. The Yuan Shen is hidden in the Yuan Infant, and if the person who cultivates the Yuan Infant is killed, as long as the Yuan Infant who escapes, he can re-cultivate the body or take away, which can be said to have a second life, and the life span of the Yuan Infant is even more incomparable to the previous stages, and it will generally be a thousand years old, so ordinary people will understand it that way.

As for the out-of-body period, the distraction period, the merger period, the tribulation period, the Mahayana period, etc., Wu Laodao has only heard of the name, and he doesn't know what it really means.

Among the nine levels of cultivation, each level is divided into three realms, namely the early stage, the middle stage, and the late stage, and each realm is divided into three stages, generally the stage of small success, the stage of great completion, and the stage of consummation, which means that the cultivation has entered this stage, the cultivation of this stage has been consolidated, and the cultivation of this stage has reached its peak. Nine levels, nine stages, this is often referred to as the ninety-nine return to the truth.

Now due to the sparse aura on the earth and the lack of cultivation materials, there are very few people who can cultivate to the Jindan stage, let alone any distraction and integration. Even Wu Lao Dao is only in the middle stage of Qi transformation, and the highest cultivation he has seen in his life is only in the middle stage of Jindan.

There are many reasons for the decline of the Earth Cultivation Realm. In the Tang and Song dynasties, the aura of the earth has begun to decrease day by day, and the skills of many monks above the merger have been difficult to improve, so they have gone to the earth to find a suitable place to cultivate, and slowly formed a trend, some sects have almost moved as a whole, and even supported by the elders of the sect, taking away the potential disciples. All the people who can go are gone, and the things that can be brought are also taken away, so the earth cultivation realm gradually withered, occasionally there is a cultivation wizard who reaches the distraction period, and he will not hesitate to follow the predecessors, after the Song and Yuan dynasties, it is rare to see monks above the out-of-body period of the cultivation realm.

The aura is thin, there is no natural treasure, and the cultivation method is incomplete, in order to compete for the limited cultivation resources, so the minds of those who have no hope of breaking through have changed, since it is difficult to improve the skill, then improve the ability. In the past, the cultivation realm relied on spells to fight, but now most people's skills are low, not enough to support high-level spells, and hand-to-hand combat has become inevitable, so all kinds of martial arts and internal skills came out, and internal skills are transformed by the cultivation of true skills. Martial arts can greatly improve the ability of close combat, and even defeat the cultivators of a higher stage at a low level, and more and more people turn from cultivation to martial arts, which accelerates the decline of cultivation and slowly forms a martial arts internal strength system.

Those who simply practice martial arts and internal skills rarely enter the Qi Transformation Period. Since the internal strength of martial arts is evolved from the cultivation of the true exercises, there are three realms of internal martial arts, acquired, congenital, and foundational, which are respectively compared to the early, middle, and late stages of the qi training period in the cultivation of the truth. If a person who cultivates martial arts and internal strength builds a perfect foundation, then the path of cultivating the truth will also be open for him, which is what we often call entering the Tao with martial arts. Before the Jindan period, people who entered the Dao with martial arts had much stronger combat ability than those who simply cultivated the truth, and they could even skip the level of challenge, but after the Jindan period, due to the use of powerful spells and magic weapons, this difference would gradually shrink.

After the Ming and Qing dynasties, the industrial revolution began, and serious pollution made the aura on the earth thinner, and the materials were more scarce, and even martial arts began to decline, until they were almost extinct after liberation, which is why ordinary people have only read martial arts novels, but rarely seen martial arts masters.

"Director, no, the copper can is lost. The secretary forgot to knock on the door, and pushed the door directly into the room, breaking the silence in the room.

"What, lost?" the three of them asked, standing up in unison.

Wu Laodao didn't care about his image at all, grabbed the secretary's clothes, and said, "Where is the warehouse where the copper cans are placed? ”

Director Li also ignored his secretary's recklessness and said, "Hurry up, you lead the way ahead." ”

The Cultural Relics Bureau didn't think that the copper pot was an important cultural relic, but it was put together with some ordinary cultural relics, except for the last time the director arranged for someone to take a few photos, few people usually went to see these items. Just now, the person in charge of the warehouse heard that the director wanted to see the copper can, and when he opened the warehouse, he found that the copper tank was gone. When Wu Laodao and the others arrived, few people knew, that is, a few comrades from the security department were standing outside the door.

Seeing Director Li, the warehouse manager hurriedly greeted him and said, "Director, don't worry, let's look for it again to see if it was misplaced or dragged away by rats after using it last time." ”

"Don't say so much, let me see where the copper pot was originally placed. Director Li hadn't opened his mouth yet, and Wu Laodao spoke first.

Seeing that the director did not stop him, the warehouse manager led Wu Laodao into the warehouse. Wu Lao Dao came to the wooden frame where the copper pot was placed, first lay on the wooden frame and observed it carefully for a while, then touched the dust on the wooden frame, and put it to his nose to smell it, shook his head, and then bent down to observe the ground, and did not seem to find anything abnormal. A few minutes passed, Wu Laodao didn't say a word, and the storekeeper who followed behind couldn't help it, and asked, "Daoist, did you find anything?"

Director Li also said at the door: "Daochang Wu, why don't we report the case, the police are more professional than us after all." ”

Daoist Wu didn't answer, but turned his head and asked the warehouse manager: "What did you lose this time?"

"Nothing else was lost, except that the copper pot was gone. ”

"So who can usually enter and leave this warehouse?" Wu Laodao asked again.

"No one else entered but me, and everyone else stood outside the door and waited when they came. Except for the monthly inventory, even I rarely enter. The windows of the warehouse are welded with anti-theft nets, and the doors are also specially made security doors, and the key to the warehouse is always pinned to my waist, so no one can enter. Today, I heard that the director asked for the copper can, I opened the door and found that the thing was missing, and then I rummaged in it for a while, and even the people in the security department were notified by the secretary, and I haven't left the warehouse since it was stolen. ”

After hearing this, Wu Laodao frowned and said to himself: "It seems that the news has leaked and has been known by those people, who disdain other cultural relics and only stole the copper pot." I've observed everywhere, and I haven't found anything abnormal, if it were an ordinary person, I would definitely be able to find some clues, it's really weird, can this thief really fly away?"

Wu Laodao set his eyes on the roof again, the snow-white roof was painted with melamine paint, without a trace, not even a spider web. In addition to the windows, there is only a small hole with a fan on the top of the wall, which is only 15CM in diameter, not to mention adults, even children can't get in.

Wu Daochang seemed to remember something, only to see his right foot pause, his body soared into the air, this vertical was more than four meters high, and he reached out and grabbed the edge of the ventilation hole. The storekeeper in the back had never seen such a scene, and he stayed there for a moment, muttering in his mouth: "Mom, flying eaves and walking on the wall, martial arts master." ”

Director Li outside the door was also surprised, and only then did he believe that what Ma Lao said was true. Seeing that Wu Laodao seemed to have found a clue, he and Ma Lao entered the warehouse and came to the ventilation hole. He raised his head and asked, "Daoist Wu, have you made any new discoveries?"

Wu Laodao grabbed the edge of the cave with one hand, took off the fan with the other hand, looked around the cave again, jumped in front of Director Li and Ma Lao, and said with a happy face: "I observed just now that no one left traces on the wall and ceiling, and there are only footprints of the warehouse keeper on the ground, the doors and windows are well sealed, and it seems that no one else has ever entered the warehouse." But just now I jumped into the ventilation hole and found that the ventilation fan was not fixed, and it could be easily removed, and the ventilation fan had not been turned on for a long time, and there should have been a layer of dust in the hole, but there was no dust in this hole at all. So I judged that someone should have taken off the ventilation fan first, and after getting through the hole, they did not go down to the ground at all, but hooked their feet to the hole, used rope sleeves and other tools to get the copper can, and then put the ventilation fan on, and finally escaped. ”

"No, the hole is so small, how can people get in from there?" Director Li and Ma Lao had heard too many incredible things today, but this time they didn't speak, and it was the storekeeper who asked questions.

Wu Daochang laughed twice, and said, "This is also the reason why I didn't find a clue at the beginning, I saw this hole when I first came in, but I didn't care, who would come in from there, the shoulder width of adults is generally 45CM, and the hole is only about 15CM, even a child can't stuff it." Later, I suddenly remembered that there was a strange person in the rivers and lakes before liberation, this person was only one meter three tall, thin and weak, and more importantly, this person had first-class light skills, and was proficient in bone shrinking skills, and it was said that he could drill through a hole the size of a bowl. He was only fifteen years old when he debuted, and in the next five years, he suppressed many predecessors known as thieves and became the first thief. It was only immediately after the liberation of the whole country that it disappeared. ”