If one were to gobble everything up indiscriminately, it would result in soul pollution, leading to confusion and errant thoughts.
Over time, this could result in a soul split, leading to one's demise due to overpowering madness.
The founder of the Yama Sect in the old days recognised this and didn't dare to cultivate the third layer of cultivation techniques.
If it were the second layer of skills, he could barely handle it.
However, once the third layer of techniques were put into practice, he would surely collapse under the strain, and would end up dying due to numerous negative thoughts.
At that moment, Zhou Sui opened his eyes, revealing a horrifying glint, and started channelling Summoning Demon Heart Scripture.
With his body as the centre, he seemed to release an endless amount of demonic Qi, as if in that moment, resonance was formed with the universe, filled with the sound of demonic music resounding vibrantly.
The second layer of Summoning Demon Heart Scripture - Summoning Demons!
After advancing to the state of Divinity Transformation, the power of demon summoning was many times greater than before, capable of not only summoning and manipulating Heart Demons, but also creating a Demon Sound, summoning Demons from Outside of the Domain.
This would lead the Demons from Outside of the Domain to mistakenly believe they were of the same kind and respond to their summons.
In an instant, with the echoing Demon Sound, cracks appeared surrounding the entire cave, and Demons from Outside of the Domain emerged from the rifts.
Each Demon from Outside of the Domain was comparable to the state of Divinity Transformation, and they were enshrouded in vast dark demonic Qi.
The entire quiet room was enveloped by demonic Qi instantaneously, turning it into a world of darkness where you could not see your hand in front of you.
The numerous Demons from Outside of the Domain sensed Zhou Sui's soul aura, each of them ecstatic as if they had come across the most delicious delicacy in the world, and pounced on it like moths to a flame.
At that moment, Zhou Sui formed a seal with both hands, his entire body released colossal black demonic Qi, and various devouring runes appeared on it, seemingly transformed into a huge devouring vortex.
The Demons from Outside of the Domain innately felt somewhat uneasy, feeling like they had fallen into a trap laid by this human; each of them wanted to escape, to leave this dangerous place.
However, attempting to escape now was already too late.
This huge devouring vortex exerted a massive gravitational pull, and instantly sucked in all these Demons from Outside of the Domain, as if they had entered a meat grinder.
Within moments, numerous Demons from Outside of the Domain were immediately torn into countless soul fragments, without even a chance to struggle.
However, these soul fragments contain the power of pollution.
If one were to swallow them, one might risk getting their soul polluted, resulting in adverse effects.
Naturally, Zhou Sui wouldn't consume these polluted soul fragments; he waved his hand, and turned them all over to the Dream Soul Gu.
At this moment, the Dream Soul Gu was already eager, with just one gulp, it immediately swallowed these Demon Souls within its belly, quickly digesting them.
To it, this was simply a scrumptious course.
Its aura and power also dramatically increased.
It probably wouldn't take long before it could advance to the Fifth Stage High Grade realm, with further breakthroughs in its cultivation.
"After hundreds of years of painstaking cultivation, I finally managed to cultivate the third layer of the Summoning Demon Heart Scripture."
"Regrettably, this technique is incomplete, and only contains three layers of techniques."
"To attain the remaining techniques, it would likely be an impossible task."
"This was not a technique passed down by Daoist Changchun, it might have originated from the Spirit World."
"To obtain the complete technique, one might need to go to the Spirit World."
Zhou Sui touched his chin, as the Dream Soul Gu increased in power, his soul power also correspondingly increased and the area covered by his Divine Sense grew larger.
Although the benefits he gained weren't as significant as the Dream Soul Gu, at least he avoided many side effects.
He wasn't like other cultivators who practiced the Summoning Demon Heart Scripture, and ended up in a state of soul splitting and demonic possession.
"Furthermore, this technique wasn't just for dealing with heart demons and Heavenly Demons."
"It could also be used against other cultivators."
"Once I exhibit the art of demon summoning, I can incite an opponent's Heart Demon, causing the opponent to fall into a Heart Demon illusion."
"Even the Art of Eating Demons could potentially form a soul attack, directly attacking the enemy's Primordial Spirit."
"It could instantly shatter the enemy's soul."
"It's somewhat similar to the Soul-dispersing Stinger, but its effects are surely better."
Zhou Sui narrowed his eyes.
He felt this technique was not ordinary, incredibly powerful.
It just had to be said that this was indeed a Demon Arts skill, incredibly profound and strong.
Of course, to successfully cultivate it was not that simple.
At this moment, Zhou Sui had a thought, immediately opening the virtual panel on his body.
A series of data was promptly displayed.
[Host: Zhou Sui, Cultivation: Early stage of Divinity Transformation (progress 60%), Lifespan: 500 (out of a potential 90000) years]
[Aptitude: First Grade Spiritual Root (99%)]
[Swordsmanship: Fifth Stage Low Grade (40%)]
[Rune: Fifth Stage Low Grade (27%)]
[Seventh-Order formation: Fifth Stage High Grade (99%)]
[Pill Master: Fifth Stage Middle Grade (20%)]
[Artifact Refining: Fifth Stage Low Grade (21%)]
[Phantasma Transformation skill: Grandmaster]
[Five Elements Alchemy Technique: Grandmaster]
[Summoning Demon Heart Scripture: Demon Seed, Summon Demons, Devour Demons]
[Seven Apertures Spirit Secret: Heart-eye Recognition, Heart-eye Insight, Heart-eye Linguistics, Heart-eye Serenity, Heart-eye Direct Death (30%)]
[Judgement of Immortals Sword Art: First technique formless sword light, Second technique slaughter sword light]