# Chapter 4191: The Fiftieth Mass of Dao Light
Having gone through "Dao Reversal, Self-Detonation of My Form," Zhang Ruochen had comprehended the transition from existence to non-existence.
In the Gray Sea, he had also gone from non-existence to existence.
At that time, he had completely seen the path of the Great Derivation clearly, with only the Great Derivation itself still shrouded in mist.
This meant he had long since reached the ultimate realm below the Primordial Ancestor level, only that his cultivation had not yet been elevated to match.
It could be said that with his current realm, even if he merely absorbed others' Dao methods, he could condense the forty-sixth mass of Dao light, the forty-seventh mass of Dao light, the forty-eighth mass of Dao light, and the forty-ninth mass of Dao light in an extremely short time.
To settle himself and better comprehend the great Dao of heaven and earth, he chose to slow down.
At this moment, Zhang Ruochen was not within the Heavenly Punishment Divine Mountain, but in a different space-time.
One thought after another flew out from within his body, like incarnations numbering in the billions, with overlapping figures. Some comprehended the Nine Eternal Constants, some contemplated the Supreme Sacred Dao, and some summarized and categorized the Three Thousand Great Daos and the One Hundred Thousand Minor Daos.
All the rules existing in the universe were being continuously calculated at this moment.
Within his sea of consciousness, they became increasingly clear. The forty-five masses of Dao light that had already been condensed were either black or white, arranged and operating according to marvelous laws. They bore shadows of the "River Diagram" and the "Luo Writing," yet were completely different.
The energy contained within each mass of Dao light at least reached the Heavenly Venerable level.
He was like a collective entity of forty-five Heavenly Venerable-level powerhouses. Such power was sufficient to battle a Primordial Ancestor.
Between each mass of Dao light, vast rivers of laws flowed.
Among them were no lack of Primordial Ancestor rules.
These were rules that Zhang Ruochen had learned from the Nether Ancestor, the Space-Time Human Ancestor, the Dark Sovereign, the Sword Ancestor, the Immovable Bright King Great Venerable, the Heavenly Demon, the Great Demon God, and other Primordial Ancestors, then drawn out one by one using the Wuji Divine Dao.
Learning the Daos of successive Primordial Ancestors, then summarizing and categorizing them.
Standing on the shoulders of one supreme being after another, ascending to the pinnacle.
Each Primordial Ancestor was a stone step beneath his feet.
At this moment, suspended above his true body's brow was the Dragon Pearl of the Ancestral Dragon.
Borrowed from the Dragon Lord.
This Dragon Pearl, together with the Dragon Nest, had been sent to this era by the Ancestral Dragon to help the descendants of the Dragon Clan resist the Immortal and the Great Calamity.
The Dragon Pearl's vitality was astonishing, its Primordial Ancestor rules and Primordial Ancestor divine qi heavy and thick, surpassing the Ancestral Dragon's corpse by who knows how many times.
It should be that the Ancestral Dragon, in the twilight of its life, had sent the Dragon Pearl within its body across the River of Time to this future era.
The power it contained was unimaginable.
Unfortunately, the Dragon Lord's cultivation was still temporarily stuck at the Heavenly Venerable level.
If he reached the Half-Ancestor realm, he could bear this Dragon Pearl, then slowly nurture and comprehend it within his body. Mastering the Dragon Pearl's power, he could, with Half-Ancestor cultivation, rival a top-tier Primordial Ancestor.
Similarly obtaining the power of a top Primordial Ancestor, the Dragon Lord's talent, comprehension, and foundation were not comparable to Jie Tian.
If Jie Tian could master the Immovable Bright King Great Venerable's Primordial Ancestor Divine Source, his combat power would absolutely not be weak.
The Dragon Lord was walking his own path; the Ancestral Dragon's Dragon Pearl was merely an aid.
But Jie Tian was repeating the Great Venerable's path, and walking it stumblingly, advancing with difficulty at every step.
Approximately a thousand years passed.
The forty-sixth mass of Dao light was condensed.
The second thousand years passed.
After the fourth thousand years, the forty-ninth mass of Dao light was condensed.
Zhang Ruochen did not stop. His consciousness and divine soul thoughts directly attached themselves to the Ancestral Dragon's Dragon Pearl, as if walking on a massive, boundless planet radiating divine radiance.
The Ancestral Dragon's Primordial Ancestor Dao was profound and extensive, with no visible boundary and no end to comprehension.
Billions of Zhang Ruochens walked on the Dragon Pearl, each step drawing out a Primordial Ancestor rule. With every passing instant, billions of completely different Primordial Ancestor rules of the Ancestral Dragon were drawn out by him.
These Primordial Ancestor rules no longer condensed into new masses of Dao light, but flew toward the forty-nine masses of Dao light, then flowed within the rivers of rules between the forty-nine masses of Dao light.
Lost in Dao comprehension, unaware of time's passage.
Unknown how many more thousands of years passed, Zhang Ruochen was awakened by a dragon's roar. The billions of thoughts he had dispersed scattered like bubbles, all dissipating.
He looked up.
He saw that the rivers of rules flowing between the forty-nine masses of black and white Dao light had all manifested shadows of the Ancestral Dragon, like a Dragon Nest where ten thousand dragons galloped.
This was the Ancestral Dragon's Dao, about to influence his Wuji Divine Dao.
"What a formidable Ancestral Dragon, truly the strongest Primordial Ancestor in the universe since ancient times. After incorporating its Ancestral Dragon rules into the forty-nine masses of Dao light, it actually suppressed all other Daos, seeking to take the dominant position."
"Moreover, this Dragon Pearl clearly cannot represent the Ancestral Dragon's full cultivation."
"Primordial Ancestor rules are only part of a Primordial Ancestor's power."
Zhang Ruochen waved his sleeve, dispersing the dragon shadows filling the sky. He dared not continue drawing out the Primordial Ancestor rules cultivated by the Ancestral Dragon.
Zhang Ruochen had confidence that he could completely analyze the Dragon Pearl and comprehend the Ancestral Dragon's Primordial Ancestor Dao methods left within it. This would not take too long. He could even use this to break through to the Primordial Ancestor realm.
But walking this path, he would forever be unable to surpass the Ancestral Dragon.
The Dao he cultivated, the forty-nine masses of Dao light, could not continue to evolve.
This was not what he wanted!
Zhang Ruochen stood up, feeling the changes in strength and weakness within his body after cultivating the forty-nine masses of Dao light.
The next moment, the forty-nine masses of Dao light coexisted within his body, continuously calculating, continuously intertwining, forming Taiji, Two Forms, Four Symbols, Five Elements, and so on.
"I still cannot see the Great Derivation clearly; ahead is nothing but fog."
"Since the fiftieth mass of Dao light cannot naturally evolve, I will forcibly condense it."
Zhang Ruochen manipulated the various rules and divine qi flowing between the forty-nine masses of Dao light, gathering them above his head, intending to condense the fiftieth mass of Dao light at the Central Palace position.
Whether it was the Nuwa Empress or the ancient Qi Refiners, the methods they employed might have differences in superiority or inferiority. The nurturing of the Primordial Ancestor's physical body might have depths or shallowness. But this must be the foundation!
It was precisely because Primordial Ancestors could mobilize the power of heaven and earth throughout the entire universe that they were qualified, to a certain extent, to not fear the Immortal, and had some possibility of perishing together with the Immortal.
Only then could Primordial Ancestors be called Primordial Ancestors, able to stand in the universe and become chess players of one side.
The Hongmeng Black Dragon's miserable end was caused by too many factors. If he had been as cautious as Shi Yan, it would have been no easy task for the Immortal of the God Realm to suppress him.
Of course, the terrifying power of the Seventy-Two Layer Tower was also an important factor in changing the balance of the universe.
The moment the fiftieth mass of Dao light had just condensed a shadow, the other forty-nine masses of Dao light shook violently.
The power of the entire universe seemed to press down upon him. Zhang Ruochen felt as if his divine soul was about to be torn apart, and the scene around him changed.
The "River Diagram" and the "Luo Writing" overlapped, transforming into a hundred stars.
A hundred became ten thousand, ten thousand became a billion.
Soon, he found himself in a vast, boundless sea of stars, with mottled and variegated nebulae and mist above, below, left, and right, like a real universe.
Each star seemed to have a tail, connected by one or several invisible lines to a river-shaped nebula, like ten thousand streams converging into a river.
This was very similar to the starry sky he had seen when he entered the Strange Domain and was inside the Void Cauldron.
That starry sky was the Dao left by the Nether Ancestor, a concrete manifestation of the "River Diagram."
This was Zhang Ruochen projecting his memories here, once again studying the Nether Ancestor's Dao and the "River Diagram."
"Primordial Ancestors condense the rule divine patterns they have cultivated from Sword Dao, Light, Death, and so on into Primordial Ancestor-level Sword Dao, Light, and Death rule divine patterns. At the same time, they also cultivate rules that belong only to their own divine Dao. The Nether Ancestor is no exception..."
Zhang Ruochen's expectations, bearing the heaviest responsibilities, to face the Immortal's Minor Calamity and the Great Calamity of heaven and earth.
Losing everything, cultivation completely gone, aged and decaying.
It was in this state of "non-existence" that Taiji was born.
Taiji could still be understood—a circle with boundaries but no edges.
What was Wuji?
What kind of state was it at that time?
The sages said: Wuji—no boundaries, no edges, no form, no image, no beginning, no end, infinite and endless.
Since everything is non-existent, how could one condense tangible rules?
Zhang Ruochen fell into a long, contemplative meditation. At some point, a thought arose, gathering the rules around him, fusing them together, and condensing them into one.
"This is the Five Elements rule of Five Elements unity! Alas!"
This was not what he wanted.
Another thought arose, fusing the Four Symbols together, creating a rule.
"This is the Four Symbols rule, not what I want."
Next, Zhang Ruochen successively fused and condensed the Two Forms rule and the Taiji rule.
He even twisted and tempered the fused Taiji rule, Two Forms rule, Four Symbols rule, and Five Elements rule together again, transforming them into an even more powerful and robust rule.
Using this rule, Zhang Ruochen deduced that he should be able to break through to the Primordial Ancestor realm, and his future achievements would not be low.
But this absolutely could not be called the Wuji rule, because it did not possess the characteristics of Wuji.
Cultivating along this path might be a Dao that was not inferior to "Myriad Forms Formless," allowing him to reach the peak level of the Dark Sovereign in his prime, able to contend with the Nether Ancestor and the Immortal of the God Realm.
But it would absolutely be impossible to reach the height of "infinity."
Among the Ways of Space, infinity was the highest, with Myriad Forms Formless second.
"If the Great Derivation is the path from Wuji to Taiji, from Taiji to Two Forms, from Two Forms to Four Symbols, from Four Symbols to Five Elements, and from Five Elements to Myriad Forms, then reversing the Dao method, one can deduce Wuji!"
Zhang Ruochen let out a hearty, long laugh, then manipulated the forty-nine masses of Dao light, charging toward the Five Elements and Four Symbols.
"Boom! Boom! Boom!"
The forty-nine masses of Dao light were submerged within the Five Elements and Four Symbols, releasing terrifying energy.
This time, Zhang Ruochen was not trying to reverse the Dao method and self-detonate, but to reverse-deduce Wuji under his own control, so the difficulty was immense.
Every step had to be carefully controlled.
The Five Elements and Four Symbols gradually transformed toward the Two Forms.
The Two Forms then degenerated into Taiji, forming a circle.
As the circle degenerated toward Wuji and gradually dispersed, time actually began to flow backward.
Zhang Ruochen felt as if he had returned to the time when he followed Xumi Saint Monk, going upstream against the River of Time, advancing toward the Primordial Beginning.
He went to one hundred thousand years ago, again seeing the scene of Xumi Saint Monk's fall.
Passing through the brief Middle Ancient Era.
He went to the Ancient Era, seeing the peerless figures of the Immovable Bright King Great Venerable, the Second Confucian Ancestor, and the Heavenly Demon, witnessing with his own eyes the prosperity and brilliance of the Confucian Dao, Taiji Dao, and Buddhist Dao, seeing the gods of the Saint Realm standing in array, some with feather fans and silk scarves, some saving all beings, some playing chess as friends.
Then came the Chaotic Ancient Era, the Mysterious Ancient Era, the Divine Ancient Era, the Nether Ancient Era, and the Far Ancient Era.
This time, he saw more clearly, witnessing the Great Demon God campaigning across the entire universe, seeing Nether Light illuminating an era, witnessing the unyielding spirit of the ancient Qi Refiners seeking immortality.
Continuing through the Desolate Ancient Era, the Primordial Era, and the Primordial Beginning.
After experiencing who knows how many Great Calamities, how many universe restarts, finally, Zhang Ruochen once again stood beneath the Singularity Point.
Everything became quiet, all prosperity and clamor disappeared.
Zhang Ruochen was very clear that he had not truly returned to the past; it was the Dao method reversing, deducing the past.
But the Strange Domain had disappeared! No!
It had not disappeared.
The Strange Domain appeared within Zhang Ruochen's Mysterious Embryo, transforming into the fiftieth mass of Dao light.
Zhang Ruochen's state of mind was calm and natural, looking at the forty-nine masses of Dao light surrounding him. Their operation was so mysterious, the Primordial Ancestor rules like divine rivers.
Blowing out a breath, it transformed into a cosmic hurricane.
In the starry sky, new space and matter continuously came into being.
With a single thought, something was created from nothing. Space expanded, matter was endless.
All the Primordial Ancestors in the entire universe were alarmed.
"The Strange Domain has disappeared?"
Murong Zhuzai's expression changed drastically, and he vanished into the Seventy-Two Layer Tower.
By the time he arrived at Haishi Xingwu, it had become dim and devoid of all mystery, empty and hollow, no different from any other star domain in the universe.
Shi Yan and the Dark Sovereign successively moved stealthily to the nearby star domain, meeting each other, their hearts shocked beyond words.
"It must be the work of that one in the God Realm. After the Nether Ancestor's death, only he has the possibility to take away the Strange Domain." The Dark Sovereign's mood was heavy.
Shi Yan said, "Nearly thirty thousand years have passed. The Heaven and Earth Altar has been built to about seventy or eighty percent completion. That one in the God Realm taking away the Strange Domain should be making final preparations to launch the Minor Calamity. The time left for us is not much!"
After the Di Yao eruption, the rate at which the Strange Domain generated space and matter had been gradually slowing, its effect on the universe weakening.
But the significance of its existence could not be compared by anything.
Mastering the Strange Domain meant becoming the center of the universe.
After Murong Zhuzai, Shi Yan, and the Dark Sovereign left, several more figures successively arrived near Haishi Xingwu. After sensing and calculating for a while, they quietly left...
This upheaval was just beginning!
As Half-Ancestors, Heavenly Venerables, and Indestructible Infinites discovered that "the Strange Domain had disappeared and Haishi Xingwu had dimmed," all cultivators realized that the universe was about to undergo a great change, and the end times had truly arrived.
Not long after, a piece of news spread through various major worlds: "The Strange Domain was not taken away by anyone, but naturally disappeared, meaning this era has ended, the Great Calamity is about to arrive, and the universe will restart."