The human realm chapter of "The Legend of Mortal Cultivation of Immortals" is recognized as a classic of Xianxia, its plot is compact, ups and downs, and its layout is also very far-reaching, especially the description of ancient demons and ancient monks, which is even more thought-provoking, and still makes people feel puzzled until now, suggesting that there are still many secrets in this world that remain unsolved.

Recalling the original text, Han Li had come into contact with the secrets related to the Ancient Demons in many places in the Human Realm, and some places were also accompanied by the ruins of the Ancient Monks and the Ancient Demon Clan. So, let's let Poor Dao take everyone to analyze the original plot, peel off the cocoon, and decipher the history of the human world.

First of all, it was Han Li's experience of accidentally discovering the "Three Brahman Sacred Skills", which was a secret technique from the Ancient Demon Clan, recorded on several "Brahman Saint True Tablets", which happened to be obtained by Han Li. So the question is, where did the ancient demon clan in the human world get the "Brahman Sage True Film"? Let's recall other memory fragments about the "Brahman Sage True Film". The important thing is that the exercises recorded in the Brahman Sage True Piece are the predecessors of the later "Brahman Sage True Demon Skill", which can be cultivated with demonic energy. The image of this Brahman Sage True Demon is also three heads and six arms, covered with golden scales, and has a single horn on his head, which clearly implies that the "Three Brahman Holy Skills" are exercises from the ancient demon clan. So how did the ancient demon exercises spread to the human world, which can't help but make people start to have questions about the history of the human world......

Second, it was the time when Han Li was looking for the relics of the Venerable Master Cangkun, and Han Li discovered that the Ancient Demon Blood Flame was enshrined in the Venerable Venerable Cangkun's Cave Mansion to worship the True Demon of the Brahman: "In the corner facing the staircase, there is a shrine that is enshrined there, and in the shrine is a golden statue of a one-horned demon god with three heads and six arms, with a hideous and lifelike face. "Moreover, the Ancient Demon Blood Flame can use the magic power of two heads and four arms, and after constantly devouring the Yuan Infant, it can even cast three heads and six arms. This experience further confirmed that the Ancient Demons once existed in the Human Realm, and that there are still remnants of the Ancient Demons in the Human Realm over time.

Thirdly, the fiercest battle between Han Li and the Ancient Demons was when he fell into the Demon Valley, the Ancient Demon Blood Flame was born in the world, everyone was in danger, and everyone was caught off guard by the Ancient Demons. A large number of monks broke into the Demon Valley for the Lingyu Garden, but unexpectedly, all of them were complete. There were even greedy cultivators like the master of the Ghost Spirit Sect, who were bewitched by the ancient demons and made mistakes! I really thought that after being infused with demonic energy, they would become even stronger...... From the analysis of the plot of the novel, at this time, the ancient demon was born, the demon power was raging, no one could stop it, and the strength of the blood flame surprised all the powerful monks, which has to make people wonder what kind of invasion the human world had suffered back then? Moreover, what was even more unbelievable was that Han Li and the others had found a lot of traces of the Great War in the Falling Demon Valley, including battle traces and spatial cracks, and it was speculated that the level of the battles that had occurred back then was impossible for even the current top combat power in the human realm to do, which in turn showed that the ancient monks of the ancient world and the ancient demons they faced were far superior to the strength of the monks of Han Li's period.

Fourth, it is the climax of the human world, that is, the plot of Kunwu Mountain. First of all, let's talk about the secret realm of Kunwu Mountain, which itself is an outlier in the human world, and the aura in it is far richer than the outside world, and it is the secret realm created by the three elders of Kunwu with great magical powers. Just imagine, if the environment of the human world is like the secret realm of Kunwu Mountain, then will more monks in the Transformation Stage be born, and even monks in a higher realm can be produced. This point has to make people wonder, is the human world in the ancient period not like it is now, the aura is thin, and the human realm monks in the ancient period can completely fight the powerful ancient demons without being weak? In addition, let's take a look at the biggest secret of the secret realm of Kunwu Mountain, which is actually the soul of the Demon Realm Ancient Demon Yuansha Holy Ancestor and the Linglong Fairy, the descendant of the Silver Moon Wolf Clan in the Spirit Realm. This makes people think even more, could it be that in ancient times, the human world used to be a place where the spiritual realm clan and the demon realm saint clan competed?

After understanding so much of the original plot, Poor Dao slowly sorted out the context of the whole thing, so let's comprehensively analyze the secret history of the human world together. Judging from these clues at present, in ancient times, the human world should be an adjacent interface space that is closely related to the spirit world and the demon world. And because of this, the ancient monks did not have the hidden danger of insufficient spiritual energy, and their cultivation was much more advanced than the current human realm monks. Moreover, the particularity of the human world is that it seems to be an interface junction, which leads to the spread of exercises in the human world is quite mixed, including humans, demons, demons, Buddhas, and ghosts...... A variety of heritages.

So why did the ancient demons invade the human world back then, and the poor Dao guessed that it was because the human world was rich in resources, and there were countless geniuses and treasures, which was a big piece of fat meat! Not only that, but the ancient demons also spread the exercises like the Three Brahmans Sacred Gong to the human world where the demons gathered, probably in order to compete with the spirit world for the ascended monks (that is, talents). The Ancient Demon used this technique to lure the Ancient Demon Clan to cultivate the Ancient Demon Skill, and then flew to the Ancient Demon Realm. The three sacred exercises are known as the ancient secret arts, which can be seen to be very old. After the old demon cultivated the Brahman Sage True Demon Skill, the demon ape said that the power of the modification was plausible, which showed that the ancient demon did not hide his secrets. Although many ancient demons have practiced this exercise, it does not mean that this exercise is an ordinary exercise that is readily available, but it just means that this exercise is a top-level demon path exercise; It can be seen that in order to attract human (demon) monks to cultivate, the ancient demons did not hesitate to carry this powerful top-level exercise to the lower realm. The exercises originated from the demon world, and when the ancient demons invaded the human world, there were high-level demons who could be killed, so they were obtained by the ancient monks of the human world. After the cultivators of the human realm get the exercises, they cannot directly cultivate, only modify, and the three exercises appear. And it has been modified by three types of monks: Buddha, Tao, and Demon. In this case, it is naturally impossible for the spirit world clans in the ancient period to give up the human world, and they will naturally have large-scale battles with the ancient demons, and places like the Fallen Demon Valley are actually the remains of the great battle between the ancient monks and the ancient demons. Although the author doesn't have many such descriptions, I think there should be many more ancient battlefields like this.

Finally, there is another question, that is, why did the human world become an interface with thin spiritual energy later? And there is no longer a spirit world clan and ancient demons to continue to invade, and even a princess like Linglong has been trapped in the human world for an unknown number of thousands of years, and no one has come down to rescue her? Regarding this, there are indeed not many clues, and the poor path can only be speculated based on the major events in the history of mortal immortal cultivation. Poor Dao guessed that the reason why the human world later became thinner was because it was out of a more advanced interface, and because of this, it became extremely difficult for the human world monks to ascend to the spiritual world. So why did the human world break away from the upper world, at present, it is most likely related to the great changes in the starry sky, that is to say, the impact of the Xiaonanzhou realm group from the fairy world was very great, not only caused the spirit world to stay away from the fairy world, but its spatial shock also caused the spatial distance between the lower world and the spirit world such as the human world to increase! It was precisely because of this that the human realm where Han Li was located was no longer the human realm of the ancient period, it had become a thin aura, making it difficult to cultivate to a high-level realm, and the battle between the ancient cultivators and the ancient demons had also become a relic of history, one of the deepest secrets in the human realm.