"This is what Father wanted me to give you later."

Louis was stunned upon hearing: "Cialdini asked you to give it to me?"

Vier nodded slightly.

Louis's curiosity was piqued.

He picked up the fragment and examined it for a long time, eventually discerning its true nature.

"A crystallized world fragment?"

He had only seen such a thing in textbooks.

Solidified world fragments, as the name suggests, are stabilized versions of world fragments,which typically originate from collapsing underground cities, embedding themselves around like shattered mirrors after the dungeon breaks.

Ordinary people find it hard to use these things, and soon after the dungeon collapses, they dissipate, transforming into real land and buildings, integrating into the Star Continent.

One of the career paths for a mage is to become an archaeologist.

These archaeologists mainly investigate not the original civilization of Star Continent, but the ruins of various civilizations that have been integrated through dungeon phenomena into Star Continent.

It can be said that such solidified world fragments are challenging to immediately utilize.

However, a few masters adept at spatial sealing have found ways to utilize these things.

They thoroughly crush the solidified world fragments into spatial materials to make large storage bags or integrate them into demi-planes to strengthen the demi-plane's inherent strength.

The materials derived from these extraction methods are the crystallized world fragments.

Louis pondered for a moment before deciding to test the roots of these things.

He said to Vier, "You practice by yourself here for a bit, I'm going to check the demi-plane."

"Okay, Master."

...

Louis brought the item into the demi-plane, and soon, there was a reaction in the demi-plane.

A stream of spatial energy continuously released from the materials, expanding rapidly within the demi-plane.

After a long time, a terrifying aura filled the Grave of Soldiers.

Louis stared dumbfounded at the towering silver-white light blade embedded in the land of the Grave of Soldiers, standing tens of meters high like a skyscraper. After a long moment, he murmured, "Cialdini, you are really shameless."

He had already discerned the true nature of the silver-white light blade.

It was known as the Martial Resonance of the Celestial Blade.

Although not as complete as the Mad King's authority over the Book of the Dead, it nevertheless had a comprehensive path of rules.

It shouldn't even be called martial resonance; it should be referred to as the "Path of the Celestial Blade" manifested.

Inside, it sealed Sword Master's every insight and combat technique regarding the path of the Celestial Blade.

However, Louis could see that this thing had a limited usage, likely it would collapse after some twenty uses.

"Tsk, make me suffer, and your daughter reaps the benefits, huh?"

He finally understood just how painstaking Sword Master was before his death.

This light blade is akin to a personal tutor with limited uses, analyzing every usage technique of the Celestial Blade for you.

This thing has its value, but it's not enormously valuable.

It's valuable because anyone can learn the fundamental roots of the Celestial Blade Domain through it.

The Celestial Blade Domain is a composite domain formed from two special rules: "Ocean Boundless" and "Breaking Spell Blade Light." 𝓯𝓻𝒆𝙚𝒘𝓮𝙗𝓷𝒐𝓿𝙚𝒍.𝙘𝓸𝙢

It's somewhat similar to the rules of the Invisible Realm: "Cutting" and "Slowing."

It can be said that through this light blade, an ordinary professional has a great chance to initially grasp the Celestial Blade Domain.

He gently touched the light blade, and Sword Master's understanding of the Celestial Blade Domain flooded his mind like a raging torrent.

In a trance, he absorbed a vast amount of new techniques and methods, understanding why people say the gap between exemplary Saint Realm and legendary Saint Realm is vast.

Compared to the relatively simple nature of cutting and slowing, Ocean Boundless and Breaking Spell Blade Light are sub-rules, carrying a strong personal style.

If rules are simplified into disciplines, then cutting and slowing in the Invisible Realm belong to the major categories.

For example, management science can be divided into many different disciplines.

Is it better to grasp large category techniques?

Of course it is; compared to the previously ignorant self, learning major categories of management science presents a journey from zero to one.

But in actual learning, people will find that as they delve deeper and more detailed, major categories divide into countless disciplines, and even among different disciplines, numerous different development directions will emerge.

Aiming for broad knowledge inevitably impacts specialization.

At this point, according to the long board theory, if you want to elevate a professional's upper limit, the best way is to find the longest board and continuously extend it.

Ocean Boundless and Breaking Spell Blade Light, depict the division from major categories to disciplines, and further into specific research directions.

The highest level of Ocean Boundless can lead to "Infinite Rules" and "Energy Rules," while Breaking Spell Blade Light's highest level can lead to "Destruction Rules" and "Sharpness Rules."

However, the highest level of rules is better, but the enormous price paid to gather comprehensive rules, plus the time required for that integration, even for one with eternal life, may only touch upon one-tenth of it throughout one's life.

But, if you move toward a further subdivided domain, you can advance steadily and develop the specific direction to an extremely terrifying height.

Is it harder to become an expert in all biological fields, or to become a genius in the specialty of CRISPR-Cas9 memory editing under gene editing in biology?