In front of Tuo Qianli, there was a fist-sized, golden stone core hanging in the air, and below the stone core was like a tree's annual rings from small to large, rippling out more than 100 wheel patterns full of amazing aura.

Wrapped in the heavy wheel patterns, the golden stone core swirled at an extremely slow speed, constantly swallowing milky white spiritual silk like substance.

"Brother Tuo, what is this?"

Xiao Yufan hadn't seen these things here before.

Tuo Qianli was obviously in a state of extreme exhaustion, but his hoarse voice still couldn't hide the strange excitement, and after seeing Xiao Yufan appear, he suddenly perked up and said: "Brother Xiao, this is the spirit core, the origin of the unformed spirit core spirit vein."

After some conversation, Xiao Yufan learned that in the time he was arranging arrays everywhere, Tuo Qianli only did one thing, that is, digging out the chakras and gathering the spirit core.

The chakra is the root of the spiritual vein, and the spiritual core is the source of the root.

The pure natural spiritual vein, whose spiritual core is fused into the chakra, is completely impossible to discover.

If you want to collect the spiritual vein, you must first find the chakra hidden in the ground, and then use a secret method to catalyze it to make it appear under your eyes, and then you need to extract the spiritual core from the chakra to make the invisible spiritual core tangible.

This is one of the first things that must be done to collect the spiritual veins, and it is also a crucial step.

Originally, it was almost impossible to build a foundation in half a step, but it was almost impossible to do this.

It is also thanks to their ancestral pulse extraction technique that is extremely against the sky, and Tuo Qianli has worked hard to consume a hundred years of life, which has been achieved after more than ten days of sleepless efforts.

Xiao Yufan saw the withered Tuo Qianli, and hurriedly took out the elixir that replenished qi and returned to the yuan for him to swallow, and when the latter settled to absorb the medicinal power, he set his eyes on the incomparably bright spirit core not far away.

If the spiritual veins are compared to a human being, then the spiritual core is the heart.

Even though he knew that the spirit vein should be a dead thing, when Xiao Yufan's gaze touched the golden spirit core suspended in the air, he still subconsciously gave up a strange feeling that it was alive.

And at this moment, when Xiao Yufan had a glimpse of the secret door of the space for the first time, the strange and intimate feeling that arose in the depths of his heart once again came to his heart.

Unconsciously, Xiao Yufan actually took more than ten steps forward.

During this period, Xiao Yufan never noticed that the dark ring he had worn on his left index finger since he was a child flashed with a strange brilliance.

When Xiao Yufan approached Xu Kaiwai, the abbot in front of the spirit core, something unexpected happened.

The Hundred Dao Chakras, which were originally revolving around the spiritual core in an orderly manner, actually accelerated.

The frequency of the chakras' movements increased suddenly, causing the surrounding aura to surge like a tide, and the rich aura that was originally gaseous was actually instantly substantiated, evolving into thousands of milky white filaments of light, swimming between the chakras and the spirit core.

At the same time, an aura of ancient vicissitudes that people couldn't help but worship emanated, like the feeling that Xiao Yufan felt when the secret door of the space was opened.

The golden spirit core, which was originally slowly swirling, was wrapped in the thousands of light filaments in an instant, and gradually expanded at a speed that was recognizable to the naked eye.

This scene is obviously not something that Xiao Yufan can understand.

But at this moment, Tuo Qianli was refining the elixir, and Xiao Yufan couldn't wake him up to ask questions, so he could only stare at the spirit core and watch what it had changed.

As time passed, the frequency of the chakras moving faster and faster, and there were thousands of spiritual energy filaments that had been derived, all of which were wrapped in the spiritual core.

The prototype was no more than a fist-sized golden spirit core, and at this moment it had grown to half a square circle, shrinking and rising rhythmically, like a beating heart.

Vaguely, Xiao Yufan felt a little uneasy, and when he wanted to retreat farther, a sudden change occurred.

Thousands of milky white filaments of light that were originally wrapped around the spirit core actually burst open.

In an instant, it all exploded.

It was as if the sunset had turned into a blazing afternoon sun in an instant, and in the blink of an eye, it bloomed with a dazzling light.

Xiao Yufan, who was leaning closer, didn't have time to react at all, and was hit by hundreds of filaments of light.

Those milky white filaments are the purest and most primordial aura of heaven and earth after being purified and materialized by the chakras and purified by the spirit core.

Even if it is just a wisp, it is comparable to the spiritual energy contained in thousands of high-grade "Qi Gathering Pills".

crashed into Xiao Yufan's body all of a sudden, and this terrifying huge amount of spiritual energy almost burst him.

At this critical juncture, Xiao Yufan was still calm, and immediately crossed his knees to settle down, frantically operated the Dan Seed, and desperately began to refine this pure spiritual energy that burst into his body.

However, it was said that after the thousands of spirit threads that wrapped the spirit core exploded, the amount that penetrated into Xiao Yufan's body was only one percent.

The remaining thousands of spirit threads shot out from all directions, and in an instant, at least sixty percent of the spirit threads pierced the thick soil, drilled out of the surface, and scattered in all directions of the Nine Tribulations Medicine Realm.

At the same time, in a vein more than 1,000 zhang long at the bottom of the sinkhole, hundreds of millions of spirit crystals turned into dust in an instant, and became waste residue.

In the core area of the Nine Tribulations Medicine Realm, two monk teams were fighting for the belonging of a fifth-order elixir "Seven Reincarnations and Flower Extinguishing".

Suddenly, more than ten milky white filaments of light burst through the air, as if they were greatly attracted, and pierced into the bodies of all cultivators at an astonishing speed that did not allow them to react.

"Ah, what the hell is this!"

A troll monk who had been pierced into his body by eight spirit threads at the same time let out a painful roar, and then saw his body suddenly increase three times.

With a "boom", the troll clan monk exploded into countless pieces of flesh, and was suddenly burst by the huge amount of spiritual energy that was suddenly infused into his body.

"This is the purest Heaven and Earth Aura, a hundred times more powerful than the best Qi Gathering Pill I have ever taken!"

The Daredevil monk who was fighting the troll monk was lucky, with only two spirit threads in his body.

Under the drastic change, he was also calm, exclaimed, and immediately sat down, ran Zhou Tian frantically, and began to refine the spiritual energy contained in the two spiritual threads infused into the body.

"It was a great opportunity to help me break through to the early stage of foundation building in one fell swoop. ”

"Ah, don't come again, it's too much, my refining speed can't keep up at all"

"I can only absorb three strands at most, and one more strand of spiritual silk, I am dead, God bless, don't have any more spiritual silk poured into the body." ”

"It's too exciting, I can't imagine that I can encounter such a great opportunity, and the bottleneck of the foundation building period is simply a joke under the impact of such a pure and strong heaven and earth aura. ”

The two groups of people who were still fighting just now, because of this sudden rain of spiritual silk, were all in a state of cross-kneeling at this moment.

There are also two who are less lucky, because there are more spirit silk that suddenly entered the body, and they exploded directly and died.