Before the universe was born, the heavens and the earth were still uncivilized, except for those chaotic creatures without intelligence, the void was silent and insignificant.

However, chaos and differentiation are created out of nothing, existence is one, one is infinity, and from then on there is nothing and nothing, one life is two, two is three, and three is all things.

The appearance (outside) of things is ten thousand, and the essence (inside) of things is one. This "one", without the other, without the self, is the true nature of the universe and the primordial.

"One" is incorporeal, but it can be perceived, understood, integrated and detached, and in the eyes of most people, it is the supreme "avenue" in this world, that is, the way of "being".

And the way of "nothingness" that gives birth to "being" cannot be said because it cannot be described and touched.

After all, all things are limited to "being", and "nothing" is equivalent to the end, equivalent to destruction, equivalent to extinction, and can only be kept away.

The way of the yang realm is the way of being, and the way of the underworld is the way of nothingness.

The way of existence and non-existence is the road of completeness in the world, and it is also the true "immortality" that transcends all things.

Yu Ling's thoughts floated in the chaotic void, and some mysterious and profound words seemed to sound from the depths of his soul, making him feel confused but infinitely fascinated.

Gradually, his mind seemed to merge into the great universe, forgetting his self and the other, as if he was supposed to be a part of the Great Dao, formless and substantial, lifeless and dead.

Space and time were stacked in an incredible state before his eyes, and he saw himself standing at the beginning of the timeline, which was like an endless river, flowing eternally in a predetermined direction, and those who went against the current would eventually be crushed.

The birth of the universe was much calmer than he had imagined, with no earth-shattering explosions, only a calm and silent evolution.

Yu Ling saw that a beam of light appeared in a corner of the chaotic world, and the light was clean and clear, warm and bright, as if it had sprinkled the entire universe in an instant, bringing unprecedented vitality.

It is one, it is all thousand, it is the beginning of everything.

The gray slowly faded, and a faint light gradually appeared in the dark universe, one star after another.

Little by little, the white light dimmed and contracted, and it sowed the last of its residual heat in a remote star, and life was born.

Single-celled organisms, pores, molluscs, arthropods, echinoderms, amphibians, reptiles, mammals, and ordinary humans who are still on all fours in the wilderness appeared on Progenitor at about the same time, as did the plant kingdom.

This seemed to violate a theory that Yu Ling knew, but at this moment, he had already merged with the Great Dao of Heaven and Earth, so he just watched quietly.

He watched as the white light gave birth to all things, then shrunk back into a point for a long time, collapsing without warning in the void and vanishing ever since.

After an unknown number of years, the primitive humans of the ancestral planet have learned to walk upright, they have come to the surface from the trees, free their hands to work, and try to use all kinds of resources in nature, such as water, such as fire.

At that time, spirit beasts were at the top of the food chain in nature, they seemed to be the darlings of the Heavenly Dao, and they had superior wisdom and strength from the beginning, and they were the kings and masters of almost every star.

As a result, the still weak human race appeared in simple nature worship, they used those fierce beasts, intelligent spirit animals, and various visions in nature as totems, praying for the blessing of the gods.

It was a time of savagery, and it was also the time that practitioners first explored.

They learned the method of qi training from spirit beasts, and then hunted some weak beasts to study their body forging methods, and some humans were gifted to awaken their soul power and began to explore soul power cultivation alone.

Since each system was not enough to save life in this treacherous world, the Terrans took the initiative to integrate the three major cultivation systems, and then were pleasantly surprised to find that the three actually complemented each other.

At this time, the spirit beasts high above had not yet realized that a weak race was rising with unprecedented rapidity, and they were still showing a gentle and obedient attitude.

It took hundreds of thousands of years for humans to wrest the dominance from the spirit beasts, and in the process, the spirit race awakened.

The first cultivator to find out the realm of fusion is like receiving a commendation from the Heavenly Dao, mastering one of the most basic principles in this world, and thus being reborn.

He is the ancestor of the later Gu Ling Clan.

But what he couldn't see was that the point where the original white light collapsed and disappeared faintly flashed a non-existent portal, as if it represented the tangible body of the "Tao" in this world.

A ray of white light burst out from the light gate, passing through the endless and distant space, merging into the bloodline of the ancestor of the ancient spirit clan.

It's just that when the fifth Void Fusion Cultivator, that is, the ancestor of the Phantom Spirit Clan, appeared, the light gate was already extremely faint, and after the last ray of white light flew out, it returned to nothing.

Therefore, in this world, from now on, there are only five major spirit races, and the rest of the sentient beings are mediocre.

Since then, the advancement of the timeline seems to have accelerated, and the human race has continued to explore stronger realms, walking out of the ancestral star to the chaotic dust, breaking barriers to the boundless, and finally coming to the Daoyu galaxy.

Seeing the Terrans usher in the most glorious golden age in history, chaos and calamity have come without warning.

Human desire is the source of progress, but unbridled desire will eventually lead to destruction.

After the Great Melee of the Spirit Race, the entire universe withered and declined, and in an instant, civilization regressed for thousands of years, the inheritance was broken, the population was sharply reduced, and the resources were depleted, everything seemed to start from scratch, and the people in the wasteland silently licked their wounds and rebuilt their homes.

One theory spread like a plague.

Immortality is unpredictable, this is the realm of God, and if mortals try to challenge it, they will inevitably lead to the destruction of the world.

Although many cultivators scoffed at this statement, for more than 10,000 years, no one dared to take that step again.

What they are afraid of is the Tao.

No one knows what it's like to be enlightened, because everyone who knows is dead, and one can only guess as much as possible, just as no one knows what it's like to be after death.

Life originally came into existence from nothing, and then returned from existence to nothing, it stands to reason that it is just a reincarnation, but there is no consciousness, no perception, this is the great horror between life and death.

Just like Yuling at this moment, he has forgotten the existence of his self, he thinks that he is a part of the Great Dao, so he is everywhere.

Time continued to flow, and at one point on a certain day, a strange fluctuation attracted Yuling's attention.

In just a flash of thought, his mind traveled through thousands of stars and came to a certain star in the Daoyu Galaxy.

In a gorgeous and majestic palace complex, there is a high tower that is almost up to the sky, and there is an old man sitting cross-legged in the tower, obviously Yuling has not seen this person, and he does not know him at all, but he feels an inexplicable familiarity.

The old man seemed to be closing his eyes to recuperate, but at this moment, he suddenly opened his eyes and looked at the sky quietly through the skylight at the top of the tower.

Obviously, Yuling no longer had a body, but he had a strong feeling that the old man was looking at him, and he smiled faintly.

There seemed to be some confusion in the timeline, which made Yuling feel unable to think.

Fortunately, the old man retracted his gaze in the next second, and said calmly: "For thousands of years, I have realized the Tao, joined the Tao, preached the Tao, and deviated from the Tao, and now I want to transcend this world, what is it?"

Above the sky, there was a sudden explosion of thunder, as if the heavens were angry.

The old man's expression was still indifferent, he stood up, stepped out, and was nine days high in the sky.

"The road has been broken, and I will reopen a realm for all living beings in the world to continue the unfinished road!"

The old man's voice echoed throughout the universe, but no one had heard of it except the Great Dao.

He stood calmly in the air, himself as if he was a complete "one", even if heaven and earth did not allow it, he would not move.

With the sun and the moon, immortal with heaven and earth.

"Daomen, open!"

The old man held his hands upward, and the whole universe seemed to tremble, as if the boundary between existence and non-existence was completely subverted by this simple action.