As early as when Shen Yuan knew about the Wanzaijietong, he discovered many suspicious points from the incomplete history.

For example, why did the Great Yin Emperor open the channel between heaven and earth, why the originally set thousand-year spiritual energy depletion period would become three thousand years, and why the spiritual energy of the Xuanhuang Realm with hundreds of affiliated worlds would not be enough to support the ten-thousand-year ban.

These mysteries not only troubled Shen Yuan, but also affected the historical direction of the Xuanhuang Realm in later generations.

As time goes by, the former sees the appearance of the Thousand-Eyed God, and Shen Yuan replaces the authority of the Great Yin Emperor with himself, thus completing the cause and effect and making the future result and the past cause form a closed loop.

The reason for this is known, but the latter remains a mystery.

It was not until the Thousand-Eyed God brought down the final decay just before the opening of the Absolute Heaven and Earth Passage, causing the Xuanhuang Realm to fall into an almost irreversible strange pollution, that Shen Yuan finally figured out the reason.

The era of spiritual energy depletion was not intended to alleviate the consumption of spiritual energy in the Xuanhuang Realm from the beginning to the end, but to eliminate the strange pollution buried deep in the Xuanhuang Realm.

By cutting off the spiritual energy and causing the decline of the rules of heaven and earth, almost all living beings in the Xuanhuang Realm were killed, and strange pollution was extracted in the never-ending reincarnation, burying them deep in the eighteen levels of hell.

These terminal decays not only led to the birth of the Eighteen Levels of Hell, but also caused the creatures outside the Xuanhuang Realm to reincarnate into this world thousands of years later. The strange pollution they carried on their bodies was detected by the reincarnation mechanism and sealed within the Eighteen Levels of Hell.

The depletion of spiritual energy lasted only a thousand years, which was not enough to wipe out most practitioners.

Only by changing the duration of the spiritual energy tide to 3,000 years, the maximum lifespan of a true spirit cultivator, can we give many practitioners hope, so that they will not despair completely and choose to destroy the order of the Xuanhuang Realm.

It was relying on this spiritual tide that cycled once every three thousand years that destroyed the once-powerful Dayin Dynasty, the once-thriving magic civilization, and the truth behind history.

After Shen Yuan said this, he, who possessed the great ability to see through walls, was able to cross the long river of history and witness the ten thousand years of decline.

Ji Zhaoyang was already standing still at this moment, and even Yan Kuang was in deep shock.

Yan Kuang was well aware of the dangers behind Terminal Decay and thought of using extreme methods to limit the spread of Terminal Decay, but he never imagined that Shen Yuan had already made a choice for the future of Xuanhuang Realm.

Although Shen Yuan's methods were as gentle as possible and there was no outright massacre, the spiritual energy tide still meant that Shen Yuan wanted to destroy a magical civilization that had reached its peak and had a population of tens of billions.

When he thought of this, Yan Kuang felt a chill down his spine.

Shen Yuan's eyes fell on the two of them, and he said casually:

“I am telling you the truth not to discuss it with you, but simply because you care about the future of Xuanhuang Realm, so you are qualified to know the truth behind it.

But this matter cannot be spread outside, nor can any attempt be made to save the many noble families of the Dayin Dynasty in any way.

In the era of changing spiritual energy tides, humanity will dominate the Xuanhuang Realm. If these aristocratic families can be passed down to later generations, they will continue to control the dynasty with the help of the trend of humanity.

This era belongs to mortals. I don’t want to see a group of corrupt guys maintaining a corrupt order that is bound to perish.

The so-called aristocratic families, let them be buried along with the exhaustion of spiritual energy!"

Ji Zhaoyang and Yan Kuang trembled, and Shen Yuan's every word seemed to be engraved deep into their souls.

Yan Kuang suppressed the fear in his heart and said with gritted teeth:

"Since the fate of the aristocratic families has been determined, may I ask how you will deal with those blessed places?"

“The tide of spiritual energy has a cycle of three thousand years. The spiritual energy era that can walk in the world can only last for a few hundred years. After all, the blessed land cannot influence the general trend of humanity, so let them let nature take its course.

Even if they have the advantage of a blessed land, after thousands of years of spiritual energy drying up, there will be nothing left. "

As soon as he finished speaking, Shen Yuan waved his sleeves and drove Yan Kuang and Ji Zhaoyang away.

Ji Zhaoyang and Yan Kuang only felt the space changing before their eyes, and the next moment they were already in the inner city of the imperial capital.

The two looked at each other and smiled the same bitter smile.

Yan Kuang said softly: "Since Master Daozi is willing to tell us the truth, he has allowed us to use the blessed land to travel to the era ten thousand years later.

I am old and have plenty of life left, so I am still confident enough to wait for that era to come.

But His Royal Highness the Third Prince is still one step away from the realm of refining emptiness, so he should make plans early."

Ji Zhaoyang lowered his head and said after a long silence:

"I will not enter the paradise."

"Why is that?"

"Every time a person goes to the era ten thousand years later, they will bring an extra portion of final decay.

Although Master Daozi doesn't care, I don't want to affect Master Daozi's future plans for my own selfish reasons."

After a slight pause, Ji Zhaoyang looked directly at Yan Kuang with a burning flame in his eyes:

"The fate of the Dayin Dynasty has been determined. As the most outstanding third prince of the Dayin royal family, I should witness the end of Dayin with my own eyes!"

Yan Kuang sighed, but stopped admonishing, and instead walked away into the imperial capital.

Everything was going as Shen Yuan had expected.

As the ruler of the human trend and the creator of Jiuzhou Ding, Shen Yuan also controls the heaven and human paths of the Xuanhuang Realm.

In this world where heaven and earth are connected, no one can go against Shen Yuan's will.

The nobles of the Dayin Dynasty spread the news that the Emperor had severed the connection between heaven and earth, and invited all the major caves and blessed places, as well as the mountain and river gods of the Xuanhuang Realm to discuss matters, setting a period of spiritual energy depletion for the next thousand years.

Some people from various forces had doubts about the thousand-year deadline and the details therein, but under the intervention of Shen Yuan in accordance with the will of heaven, everyone subconsciously ignored the possible problems.

The entire upper echelons of the Xuanhuang Realm maintained the same tacit understanding, and publicized to the outside world that the spiritual energy tide lasted for a thousand years just to prevent the Xuanhuang Realm's spiritual energy from being completely exhausted.

This naturally aroused dissatisfaction among many practitioners, especially those at the lower levels who rioted, but they were all suppressed by Dongtian Fudi and the Dayin Dynasty with tough measures.

This year, Shen Yuan sat on the throne of Mount Tai and suppressed the spiritual veins of the Xuanhuang Realm with the Jiuzhou Ding.

The wave of spiritual energy depletion does not happen overnight, but is an extremely long process.

As the spiritual energy of the world gradually declined at a speed visible to the naked eye, the power at the top of the Xuanhuang Realm withdrew from the stage of history, leaving behind a chaotic Xuanhuang Realm.

Without the suppression of the old order, the Dayin Dynasty, as the main body of the Xuanhuang Realm, soon suffered a backlash. Even though there was humanitarian luck to suppress the four directions, without the blessing of rune technology, the building was still shaky.

The devil cultivators reappeared and massacred cities one after another, but there were also monks with a sense of justice who were unwilling to survive and fought against the devil cultivators head-on to save thousands of lives.

During this process, Shen Yuan saw many powerful practitioners breaking into the holy land of the demon clan, wanting to rely on the Demon Transformation Pool to reincarnate, resulting in Bai Ze, one of the demon saints of the time, being forced to reincarnate.

Shen Yuan saw that the leader of Xuehe Yuantu Dao, Kuang Tianjie, was being hunted down by the immortals of Dongtian Holy Land, and could only hide in a secret place with his remaining body, hoping to entrust himself to a Taoist ring. Shen Yuan also saw that in the chaotic Jidu waters, Yunmeng Dragon King fought against many powerful men of Jidu Dragon Palace and died in Yunmeng Lake.

However, all this is just the beginning.

When the concentration of spiritual energy dropped to almost nothing, the magical civilization that had sustained the human race for tens of thousands of years began to collapse.

Without the support of spiritual energy, these talismans that created a glorious history were completely swept into the garbage dump and turned into useless waste.

The portal that could instantly cross thousands of miles collapsed, and the trade connecting the territory of Daxia was interrupted.

The mechanical beast that could carry hundreds of people has lost its power. The two cities, which were once thousands of miles apart, are still able to maintain a highly close connection, and it only takes one day to reach each other by riding the mechanical beast.

However, as the spiritual energy dried up, people could only travel on foot across the territory of Daxia that stretched for hundreds of thousands of miles, and along the way they were accompanied by demons, evil cultivators, birds and beasts that might attack at any time.

People could only start developing clusters with cities as the center.

However, as civilization declined, a disaster far more terrifying than that of the demons and monsters began to erupt: the great famine!

During the heyday of the Dayin Dynasty, there was a Minister of Agriculture who supervised the gods of incense and worship, and ordered the gods to maintain good weather and good harvests.

Magical spells are used to cultivate spiritual seeds, graft plants, and make fertilizers. All kinds of technologies are used throughout Dayin. The extreme development of productivity has meant that Dayin no longer needs to worry about food.

The city warehouses are filled with uneaten food, and there is a constant temperature formation to maintain the temperature in the warehouse to ensure that the food can be eaten for a long time.

However, as the spiritual energy dried up, the weak incense gods collapsed and no one could maintain good weather and good harvests.

The constant temperature formation in the warehouse failed, and a large amount of food became rotten and unusable.

The decline of various planting techniques that relied on magic has made it impossible for the people of Dayin to grow super-high yields of food. Some seeds are even degenerating due to the loss of magic cultivation.

Without food security, famine began to break out in cities, and the disaster affected the human race, causing countless deaths and injuries.

Order completely collapsed at this point, and the name of the Dayin Dynasty existed in name only after a long period of famine.

But Shen Yuan just watched it all. Even though he could save everything by just moving his fingers, he still did not interfere.

After a long period of chaos in which order collapsed, the human population declined to less than one-fifth of its peak period in the Dayin Dynasty.

Because this is the limit of what the safe land around the cities can support after the decline of magical civilization.

However, the brief stability of the population did not last long. The next disaster followed and the rules of heaven and earth began to collapse.

If the depletion of spiritual energy is an external weakening for practitioners, then the collapse of the rules of heaven and earth is a negation of the practice system from the root.

During the period of spiritual energy depletion, practitioners can still use massive amounts of spiritual stones to seal themselves in a certain area of ​​the Xuanhuang Realm and survive.

However, the collapse of the rules of heaven and earth directly shook the cultivation system of those practitioners who remained in the world.

The practitioners began to lose the powerful strength they were proud of. Even though they had a huge amount of spirit stones, they could only watch themselves become mortals and reach the end of their lifespan.

And with the collapse of the rules of heaven and earth, the originally vast territory of the Xuanhuang Realm began to shrink, the mountains and rivers that were the gathering place of inhumanity returned to the origin of the Xuanhuang Realm, and the cities that were once thousands of miles apart were shortened to only a hundred miles.

As the distance got closer, humans reconnected with each other and the fire of civilization was rekindled.

But this does not mean a good thing. The human race has never lacked ambitious people. Wars began to break out between major cities and quickly swept across the entire Dayin Dynasty.

The heroes and heroes had been deadlocked for decades without a clear winner. After signing an alliance with each other, the deadlocked forces resolutely chose to attack the core imperial capital of Dayin and witnessed the end of this last dynasty.

When someone broke into the newly rebuilt imperial city, they only saw a sword that had lost its luster, a seal, and a rotten body sitting cross-legged under the throne of the Human Emperor.

That was Ji Zhaoyang, the last prince of the Dayin royal family, who failed to successfully ascend to the throne of the Human Emperor.

From then on, an era of war among hundreds of nations surrounding the imperial capital began.

In the paradise outside of this world, many aristocratic families of the Dayin Dynasty knew everything about the outside world.

They rely on their blood relatives who remain in the present world to monitor the entire Xuanhuang Realm.

They never cared about the end of the Dayin Dynasty. In their opinion, as long as they waited for the end of the thousand-year period, they could return to the world and establish a new Dayin Dynasty.

This idea has been going on for more than a thousand years, but these aristocratic families have not yet received the results they wanted.

Since the aristocratic families only hastily developed the blessed lands, they were far less stable than the blessed lands of the sects with a long tradition, and many of them were on the verge of collapse.

In order to seek maximum profits, the aristocratic families purchased large quantities of rare minerals and natural treasures in preparation for the recovery of spiritual energy, but only had a thousand years' worth of spirit stones left to supply spiritual energy.

After a long time, the paradise that had lost its supply of spiritual stones began to collapse on a large scale.

There were powerful men from aristocratic families who risked their lives to break out of the paradise, but when powerful men beyond the limits of the existing world arrived, they were greeted only by devastating punishment from heaven.

The scenes of the deaths of powerful men turned into folk legends, and their accusations against the Supreme Taoist before their death were heard by mortals in fragments and recorded in some stories about gods and ghosts.

In this chaotic era, only a few people noticed that a meteor from nine heavens fell into the Xuanhuang Realm and landed in the Xiaoyouqingxu sky.

The dust of the old era was swept away, and after a long period of strife among hundreds of nations, the Dayu Dynasty was established, bringing the rule of the humane dynasty back to the Xuanhuang Realm.

But less than a thousand years after the establishment of the Dayu Dynasty, the first spiritual era arrived. The practitioners recorded in myths and legends returned to the world, and the Dayu Dynasty collapsed amid the conflict between the immortal way and the human way.

Hundreds of years later, the spiritual energy era ended and the immortals went into hiding. The Qin Dynasty was established in the era of spiritual energy depletion after the chaos in the immortal way.

The rule of the Great Qin Dynasty also lasted for three thousand years, until the second spiritual era came again.

As the tide of spiritual energy went through another cycle, the Xuanhuang Realm welcomed the Great Xia Dynasty, and ten thousand years of time passed.

When Shen Yuan, who was sitting on the throne of Mount Tai, witnessed the revival of that faint spiritual energy, a ray of spiritual light from outside the heavens descended into the Xuanhuang Realm.

A smile appeared on Shen Yuan's lips. The time and space of Xuanhuang Realm froze at this moment. Shen Yuan stood up from the throne and stepped into the long river of history.

The next moment, the Taishan Palace, which seemed to have been anchored in the past tens of thousands of years, turned into ashes and dissipated in the secondary space and time.

And in Wencheng, a young man who had just attempted suicide slowly woke up from a coma.