In a sense, the Mind Imprint is a complete technology that can use mechanical means to strengthen a person's belief in something.
The human brain is quite marvelous, with different neural locations responsible for different areas.
There are also specialized neural regions responsible for judging right and wrong.
For example, the proposition that water is poisonous.
This proposition requires multiple verifications, such as what kind of water it is and what is in the water, before a decision can be made about whether the water is poisonous.
The process of decision-making is very complex.
However, the Mind Imprint can bypass these processes and directly arrive at an answer. When a certain piece of information enters the brain, by influencing a certain part of the neural network, the brain can make a judgment without thinking and believe this information is true.
That is to say, once the Mind Imprint that water is poisonous is implanted in the brain, it means that the person will truly regard all water as poison.
Given the complexity of the Imperium and his special identity, Guilliman decided to use this technology.
Guilliman had no choice; he could only firmly stand on the side of humanity.
The Emperor also stands on the side of humanity, but he might not necessarily stand on Guilliman's side.
He is both an outsider and has a cheater.
If the Emperor determines that he is an enemy and could pose a threat to humanity, he might just decide to eliminate him.
At that time, being on Terra and getting captured directly would be the end of him.
The Custodes, those shut-ins, have more than a little opinion of the Primarchs. With a single command from the Emperor, they could take down Guilliman in minutes.
Some conservatives and hardliners, who in the original timeline were very dissatisfied with the resurrected Guilliman's actions such as altering the Emperor's work and reforming the bloated Imperial system, even directly rebelled and refused to obey orders from Terra.
These guys are all potential threats!
In addition to these threats, the invasion of Chaos and other issues are all very tricky.
You can't possibly have the weapons you created being used by traitors to attack humanity itself!
That would truly be too terrible.
Guilliman needed a trump card, so he decided to imprint the new recruits with the Mind Imprint.
This would make them firmly hate Chaos and everything related to it, and at the same time, make his command authority higher than the Emperor's authority. This way, even if the Emperor turned against him, he could at least retreat safely and not be trapped and killed on Terra.
Cawl looked at the smiling Guilliman, and his high-speed operating intelligent core even stuttered for a moment.
He had already read the contents of the data storage and naturally knew what this Mind Imprint was.
"Regent, this Mind Imprint technology..."
Cawl's tone carried confusion. Was such a technology really going to be applied?
"You know the current state of the Human Imperium, Cawl.
We have no retreat left. The Imperium has endured for ten thousand years, yet it is constantly losing ground to Chaos, weakening day by day, in a worse state than during the Great Crusade.
How can we face the increasingly terrifying war in such a situation? In the long run, humanity will inevitably be completely destroyed by Chaos.
Desperate times call for desperate measures. We need an army that is absolutely loyal to humanity and to the Imperium.
This army must be reliable and completely obey our commands and ideas. You have seen the corruption of the Terran bureaucracy and the rigidity of the Mechanicus.
If we don't make changes, do you think we can defeat the terrifying Chaos??"
Guilliman didn't want to reveal his true intentions; he would just try to persuade him for now.
Cawl's brow furrowed, and strange light flickered in his electronic eyes. After a moment, he had made a decision.
"I will fulfill your wishes, Regent." Cawl bowed, and the mechanical hum accompanied his action.
Guilliman smiled.
"That's for the best. Go, and complete the task I have assigned you. I hope to see this army as soon as possible. I need it to stabilize the current chaotic situation in the Human Imperium."
After ending the conversation with Archmnagos Cawl.
Guilliman summoned the leaders of the Ynnari, Yvraine and the Visarch, preparing for a face-to-face talk with them.
The Human Imperium has always disliked xenos, and the people of Ultramar would not trust xenos operating in their world.
Before he led his troops out to suppress the remaining Chaos forces in the Five Hundred Worlds of Ultramar, he had to deal with the matter of the Ynnari, this xenos army.
The Ynnari are not part of the Imperial structure but are an army from the ancient xenos race, the eldar.
For some reason, they chose to help Cawl, Saint Celestine, and others resurrect Guilliman.
They put in a lot of effort in resurrecting him, and Guilliman couldn't just eliminate them directly; that would truly be a bit inhumane.
The eldar are slender and their appearance is similar to humans, except for their ears, which are a bit different and very pointed.
They are exceptionally beautiful, possessing a certain aura that humans cannot replicate.
Yvraine and the Visarch walked in from outside the door and bowed slightly.
This was a sign of their respect for the Regent.
Guilliman watched the two of them. Even having experienced the era of filters and beautification, he had to admit that the eldar were indeed very good-looking.
Their waists were impossibly thin, and Guilliman highly doubted whether their waists could support the armor on their bodies.
"No need for formalities, speak to me directly. I have many mysteries that require your answers."
Guilliman motioned for the two to straighten up and looked at them.
It's worth mentioning that the eldar were a significant factor in the creation of one of the four Chaos Gods, Slaanesh.
The eldar are a very ancient race, rumored to have participated in the War in Heaven.
In the War in Heaven, their creators were destroyed, and their enemies, the necrons, fell into slumber.
They gained the position of galactic overlords and entered their most prosperous phase.
In their prosperity, they gradually descended into decadence, falling into an abyss of endless desire.
Their entire race became immersed in a sea of desire, indulging themselves recklessly.
Their indulgent thoughts and souls surged in the warp, creating a massive echo and awakening and nourishing a certain ancient and terrifying entity.
The birth of Slaanesh unleashed a terrifying soul storm, causing the vast eldar Empire to collapse directly.
The real universe was torn apart by the shriek of the newborn Chaos God, forming the Eye of Terror, which connects the warp and the real world.
Countless eldar were drained of their life force and psychic energy, becoming sustenance for Slaanesh, on the verge of destruction.
Even the gods the eldar once worshipped faced a crisis in this terrible disaster, either being destroyed or imprisoned.
Only those eldar who had foresight and did not participate in the decadence of eldar society, as well as those who had escaped into special spatial nodes and Webway cities beforehand, managed to survive.
The souls of the eldar are constantly watched by Slaanesh; as soon as they die, they will fall into Slaanesh's hands, suffer torment, and become part of its sustenance, on the brink of annihilation.
However, their technology and psychic abilities are still very powerful, and they are a force to be reckoned with in the galaxy.
The Ynnari, led by Yvraine and the Visarch, even helped Cawl and others escape the pursuit of Chaos forces, fleeing from the Cadia battlefield and successfully reaching Macragge.
"The stars have been torn apart, and the beings of the galaxy are about to face the most terrible disaster. Once the power of Chaos surges out of the warp, the galaxy will also enter its doomsday. I am very pleased that our two races can form an alliance and jointly resist this crisis."
Guilliman nodded, "I also express my joy at this alliance. It is a great honor for the Imperium to receive your help."
"We are about to depart, but there are some things I must warn you about. While Cawl's technology is powerful and has healed your body, your true wound lies at the soul level.
The reason you can truly walk among the living is due to the power of the Ynnari.
If you cherish life, then from now on, you must never remove your armor. Have no worries, the durability of this armor far exceeds your imagination."
"I do not wish to delve into this matter, nor do I wish to investigate what power is hidden behind the one that awakened me!
But I still want to give you a warning. If you desire the friendship of humanity, you must be sincere.
Any underhanded methods will only erode humanity's mercy and trust towards you.
I do not wish for a day to come when we meet again, only to draw swords against each other on the battlefield."
Guilliman smiled. He didn't want to investigate this matter. He was already resurrected, and any schemes the eldar had for him were no longer important.
With the database and the Codex Astartes, he could easily handle everything.
He just wanted to give Yvraine a warning. If they played tricks, the Ynnari would definitely regret it in the future.
Although they were his saviors, when faced with the choice between his own life and the survival of humanity, he would not hesitate at all to draw his sword against the eldar.
"We will keep your warning in mind. We hope our next meeting will still be as friends, and not as enemies."
After Yvraine performed a gesture of respect, she turned and left.
"Very well then. Finally, I wish you success and that you give our common enemy a taste of their own medicine."
"And I wish you good fortune in battle, Roboute Guilliman," Yvraine said. "The eyes of the gods and your traitor brothers are already watching you. Try your best to survive."
After speaking, she turned and walked out. The Visarch, who had remained silent, offered the Primarch a warrior's salute and then also turned and left.
Guilliman frowned, feeling instantly weary.
This universe is full of monsters!
Anyone who comes along is a cunning person, not easy to fool!
After resolving the matter with the eldar, Guilliman pressed the communicator, "Let the Planetary Governors and Rogue Traders who have been waiting for a long time come in. I have something to tell them."