"Come to think of it, this Heaven-Devouring Earth-Eating Technique is quite similar to the [Returning Origin Shell]."

"Both can consume the earth’s veins and have no sense of restraint."

"It seems that many techniques from ancient times were created by mimicking mythical beasts."

Li Fan recalled the sights he witnessed in the [Clash Of Ten Thousand Laws] section of the Divine Treasures Museum, lost in thought.

"Unfortunately, while deriving techniques from the traits of mythical beasts, their flaws were also inherited."

"However..."

"If the flaw of losing one's mind could be eliminated through improvements using the Dao Derivation Stone, it could still be considered a powerful divine ability."

Thinking of this, Li Fan shook his head.

"I fear there is no chance in this world. I am about to break through to the Nascent Soul stage, and the 'Sitting Mountain Art' has reached its limit. Pushing it to a higher level is the most urgent task."

The image of a young cultivator's carefree face suddenly surfaced in Li Fan's mind.

It was Han Yi from his previous life, who, with the help of the Heavenly Feather Pill that extended life by 800 years, successfully earned the qualification to derive the Derivation Law Beads into the Dao Integration Stage technique.

"If I want to elevate the 'Sitting Mountain Art' to the Dao Integration Stage in one go, I need to steal this person's fortune."

"However, something seems off about this person. No matter how I look at him, he doesn't seem like someone blessed with great fortune."

"In my previous life, my clone explored the Heavenly Capital Ruins with him, and not only did we find nothing, but we also encountered constant danger, almost losing our lives."

"I could say that even my clone, which had almost no fortune, was far superior to him."

"But it is true that he obtained the Heavenly Feather Pill and treasures like the fixed fish head lottery."

Li Fan frowned slightly.

"I remember that before his sudden wealth, he was once deceived by a Foundation Establishment master."

"When the time comes, I should pay extra attention to him."

"Let’s see how he turned his life around from being penniless to prosperous."

After contemplating for a long time, his clone finally awakened.

Li Fan put away all the spirit stones and Enlightenment Pills, leaving the clone to continue guarding Tai'an Island.

He then changed his appearance again and headed to the north-eastern most corner of the Congyun Sea through the teleportation array.

His destination was naturally Yin Yin Island, where the Master Yin resided.

In the entire Congyun Sea, there weren't many people Li Fan cared about.

Master Yin was definitely one of them.

It wasn't just because of the [Foundation Establishment of Self] technique he comprehended, which was verified by Su Changyu in his previous life and was indeed feasible.

It was still slightly flawed and needed to be perfected.

What intrigued Li Fan the most was that after more than a decade of researching the Immortal-Mortal Miasma, Master Yin eventually chose to end his own life.

Even ants cling to life.

Theoretically, someone as obsessed as Master Yin would be even less likely to give up their life easily.

But he did, which could only mean one thing.

He finally discovered the secret of the Immortal-Mortal Miasma, and the result was so unbearable that it drove him to despair.

In his utter desolation, he lost the will to continue living.

Only then did he choose to self-immolate.

Li Fan was also very interested in this secret.

After three days, Li Fan quietly arrived outside Yin Yin Island.

From a distance, the cries of mortals rose and fell continuously.

Li Fan didn't intend to alert Master Yin; he only planned to release the Formless Killing Intent to monitor him.

But the result shocked him.

The moment the Formless Killing Intent locked onto Master Yin, the perspective suddenly split into hundreds of fragments.

Besides the one on the ground who was concentrating on conducting an experiment,

All the others were broken and mutilated corpses in the basement, all looking exactly like Master Yin.

From the heavenly perspective, Li Fan discovered that these dismembered and seemingly dead corpses were actually still alive!

As they quietly lay in the basement, they would occasionally make barely noticeable movements, like turning their bodies or rolling their eyes.

Looking into their eyes, Li Fan even had the thought that these corpses seemed to be "thinking."

This eerie scene sent a chill down Li Fan's spine.

"The splitting of the Formless Killing Intent's perspective means that, in the eyes of Heaven and Earth, these living corpses are actually the same person as Master Yin."

Li Fan thought this, becoming even more solemn.

He remembered that Master Yin had mentioned he dissected hundreds of corpses in this basement to finally comprehend the [Foundation Establishment of Self].

Given the current situation, it's highly likely that he dissected "himself" one body at a time while still retaining consciousness.

"A true madman..."

"No wonder he was able to comprehend a technique as heaven-defying as [Foundation Establishment of Self]."

"If he were focused on cultivation, he could have easily reached the Dao Integration Stage."

"Unfortunately, he was obsessed with studying the Immortal-Mortal Miasma."

Li Fan couldn't help but sigh in admiration as he stared at the only Master Yin who could still move normally.

Throughout his reincarnations, Li Fan had encountered countless so-called geniuses.

Even Brother Zhang's wish to suppress the ancient times with his Dharma Body and Mr. Bai, who ascended to godhood as a mortal in an instant—these were all figures capable of being remembered for a hundred lifetimes.

But none of them gave Li Fan the same eerie feeling as this Foundation Establishment Master Yin.

Li Fan spied on Yin Yin Island for several days.

Master Yin was like an unrelenting machine, experimenting, recording, thinking.

Then repeating the experiments.

There was no sign of fatigue on his face, only deep immersion.

Li Fan also noticed that whenever Master Yin was deep in thought,

The expressions of "contemplation" on the faces of the hundreds of corpses in the basement became more pronounced.

"It's like having hundreds of versions of himself pondering the same problem simultaneously..."

Li Fan realized.

"Perhaps that's why he was able to unravel the mystery of the Immortal-Mortal Miasma."

Li Fan then recalled the words of Master Yin to Su Changyu in his previous life when he was possessed.

"Yes, where did these corpses come from?"

"Ah! I remember now!"

"It was a huge rainstorm! Countless corpses fell from the sky like raindrops, and I took the opportunity to collect a few..."

Li Fan squinted slightly: "So, these hundreds of corpses picked up from the rain were all versions of himself?"

"Truly a bizarre matter."

After pondering for a long time, he couldn't find any related examples from the secret records of the Xuanhuang Realm he had read.

Li Fan had no choice but to put the matter aside for now.

He continued to observe from the outside for a few more days until Yin Yin Island ran out of mortal materials.

Master Yin needed to go out to find more mortals as test subjects.

Only then did Li Fan quietly leave.

"I'll keep monitoring him for now. With the [Transformation of Unified Divine Dao] secret technique, it won't affect my regular cultivation."

Li Fan took one last deep look at Master Yin hurriedly departing figure, returned to his "Heavenly Mechanism Sect Cultivator" appearance, and made his way back to Ten Thousand Immortal Island.

He consumed an Enlightenment Pill and entered the [Spiritual Enlighten] state.

Li Fan temporarily secluded himself to focus on cultivation.

With the dual boosts, even though Li Fan was practicing the extremely difficult "Mountain Sitting Art," his progress was swift.

More than two months later, with a surge of pure cultivation feedback suddenly appearing in his dantian,

Li Fan finally awoke from his seclusion.