Within the Dubhe Dao Artifact, Lin Fei immediately entered the realm of the Martial King. Here lay countless techniques and skills of the Martial King level, collected by the True Immortal Dubhe.

Yet, Lin Fei didn't rush to study these techniques. First, he needed to understand, what exactly was a Martial King? Such knowledge can be found in the books here.

Quickly, Lin Fei located a particular tome, its title grand and authoritative. It didn't merely discuss the differences between a Martial King and the Nascent Soul stage. Instead, it delved deep into the philosophy of martial arts and the path of immortals.

Immortal cultivators, while they harnessed the essence of the heavens and earth and the brilliance of the sun and moon to refine themselves, essentially focused on comprehending nature, the universe, and the Dao. Their ultimate goal was to merge their understanding, their very beings, with the cosmos, thus gaining control over it. A single individual's power was insignificant. Even after reaching the Nascent Soul or Deity Transformation stage, the universe and the Dao were still supreme.

Martial arts, however, took a different approach. They emphasized the return of great power to oneself. Martial artists sought to seize external forces to supplement themselves. For instance, they would absorb external strength to continually enhance their physical bodies. If one's potential was fully tapped, no worries, they would use external resources to strengthen themselves, always aiming for greater power. Perhaps the universe is vast, but when a martial artist reaches a certain pinnacle of strength, even the heavens, earth, and moon could be subsumed into oneself, becoming "nourishment" for one's own growth. This is the essence of martial arts!

Though both paths seemingly lead to the same destination, the only distinction between the Dao of Immortals and Martial Arts might be the pursuit of eternal life - a quest for longevity, freedom, and true liberation. However, in terms of cultivation philosophy, they are diametrically opposed.

Having grasped the philosophy of martial arts, Lin Fei could now delve into the cultivation methods of the Martial King. After all, the foundation of the Martial King was the cultivation of bloodlines.

Indeed, once one achieves the status of Martial King, they must cultivate their bloodline. The first bloodline must be perfected before one can move on to the next. This bloodline cultivation could either be based on personal insights or external resources. A bloodline could even be "plundered" from exotic beasts or even from other Martial Kings.

However, such methods come with their downsides, even defects. The seized bloodlines carry their own wills. If not adequately suppressed, these conflicting bloodlines might cause chaos within, leading to the disintegration and eventual demise of the Martial King's bloodline.

Of course, plundering the bloodline of another Martial King is taboo. Such actions would be branded as dark or demonic arts, and those who dared to tread this path would be condemned and pursued by all!

Once the nine bloodlines reached perfection, unified as one, they could transcend the Martial King, and rise to become the God of Martial Arts.

Though many claimed martial arts bridged to the divine, only those with the nine conjoined bloodlines were truly deemed Gods of Martial Arts, Equivalent, it was, to the Immortal Dao's Deity Transformation.

Lin Fei had discerned the principles behind the Martial King's cultivation, and its diverse realms.

"What about the Martial Domain? What's the next threshold within it?"

Lin Fei contemplated the Martial Domain. Now, his Saber Domain had attained perfection. Yet, it had reached an impasse. Moreover, Lin Fei was already a Martial King. Unleashing the Martial King's bloodline, his Saber Domain could effortlessly be torn asunder, seeming to have lost its prior significance.

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Lin Fei poured over countless arcane scriptures and indeed discovered details on the Martial Domain. Beyond the domain was the World!

But this world differed from the conventional sense, such as the Saber World, and the Sword World. Evoking the Saber World, it represented a universe of the saber.

Within this Saber World, one could cultivate normally. Moreover, all who practiced saber techniques and pursued the Saber Dao, found their cultivation within Saber World doubly effective. Comprehending the Saber Intent, Saber Momentum, the Saber Domain, and more, all hastened.

Moreover, the Saber World could be detached, existing in splendid isolation, comparable to a mystical territory. Of course, the Saber World was combat-ready, rivaling the prowess of a Martial King. And the might of a Saber World was not inferior to those Martial Kings with one or even two bloodlines. This was just a common Saber World. A mightier Saber World could easily vanquish average Martial Kings.

However, these texts also highlighted a pivotal point. Without the bloodline of the Saber Dao, evolving was an impossibility. In fact, the Saber Dao's bloodline often had to be perfected, for the Saber Domain to potentially evolve into the Saber World.

"The bloodline of the Saber Dao..." Lin Fei whispered under his breath.

The Saber World was the zenith of the Saber Dao. If one could craft an entire world, was that not the apex?

Concerning the God of Martial Arts, it represented a transcendent echelon. To which, the Saber World was rendered obsolete. The realm of Martial God was a life tier beyond Lin Fei's comprehension.

Martial King and Martial God, Nascent Soul, and Deity Transformation, symbolized a profound metamorphosis. This leap was even grander than the jump from Innate to Martial Saint. Although the Saber World was the endpoint of the Saber Dao, at the level of the Martial King, the Saber World evidently held immense value, especially in combative prowess. A Martial King possessing the Saber World was akin to gaining an additional bloodline or even several. Naturally, their combat strength surged linearly.

Lin Fei was somewhat anxious. "What should I cultivate for my first bloodline?" Now, he had an idea in his heart. "It's naturally the Saber Dao bloodline!"

The Dao of the saber is also a bloodline. Similarly, the Dao of the sword is a bloodline. Some Martial Kings inherit the saber Dao bloodline and the sword Dao bloodline. Their descendants have an amazing talent in the way of the saber and sword.

However, cultivating saber Dao isn't as simple as just mentioning it. It requires practicing specific techniques. Although Lin Fei already has a bloodline, it's too mixed and difficult to cultivate to perfection.

The bloodline has to be pure. All nine bloodlines of a Martial King must be absolutely pure. Only when they are pure can they hope to be cultivated to the utmost. The mixed nature of the bloodline that allowed Lin Fei to become a Martial King must be refined through techniques. It needs to be made pure over time.

So, Lin Fei began searching for saber Dao techniques. Inside the Dubhe Dao Artifact, various techniques can be found. The vast collection of True Immortal Dubhe had a plethora of techniques, naturally including saber Dao.

However, there are differences in saber Dao techniques. Different techniques result in different bloodlines. Even within the saber Dao bloodline, there are differences in strength.

Lin Fei skimmed through various saber Dao techniques. Most saber Dao techniques are quite balanced. However, there are also some very extreme saber Dao techniques.

For instance, Lin Fei came across a technique named Supreme Saber Dao Bloodline. Upon practicing this technique, one could cultivate the Supreme Saber Dao Bloodline. This bloodline has no defense, and no other advantages but focuses purely on the attack aspect of saber Dao. It's the pinnacle of offense. Its attacking power is said to be terrifying, an overwhelming direct attack.

"Supreme Saber Dao Bloodline? It dares to proclaim itself as supreme, it must be extraordinary. However, the entry requirements for this technique are very strict. One must have talent in saber Dao, even reaching a very high level."

Lin Fei had an idea. Isn't his Dao of the saber quite strong? Moreover, his bloodline was integrated with saber Dao. Like the Dual-World SaberDivine Ability. That's Saber Dao!

Furthermore, Lin Fei has achieved the perfect Saber Domain. His accomplishments in Saber Dao surely meet the requirements for the Supreme Saber Dao Bloodline.

"Decided!"

Without any hesitation, Lin Fei chose this technique. If he's to cultivate the saber Dao bloodline, he naturally should aim for the strongest one. This Supreme Saber Dao Bloodline technique is ambitious and demanding. Most importantly, it's collected by True Immortal Dubhe. Anything that catches the eye of Dubhe True Immortal must be extraordinary.

Lin Fei took a deep breath and said to the technique, "I have achieved the perfect Saber Domain, my saber Dao isn't weak, and in the future, I can even evolve my Saber Domain into a Saber World. Would you assist me in achieving the Supreme Saber Dao Bloodline?"

"Buzz."

After Lin Fei finished speaking, he instantly deployed his Saber Domain, encompassing the Saber Dao technique.