The core and foundation of sword cultivation lies in the sword heart in the depths of the dantian.

Whether it is orthodox sword cultivation or sword cultivation, the first step of cultivation is to condense the sword heart, and then the road is generally to conceive the sword heart with its own spirit, and then rely on the continuous promotion of the sword heart to supplement itself, to achieve the simultaneous sublimation of the true body and the sword heart, and finally embark on the ultimate, feather and return to the immortal purpose.

Of course, in terms of the nature of the sword heart, the sword heart condensed on the basis of sword cultivation is more pure and brutal than the sword heart of the orthodox sword immortal, the latter will only passively accept the conception of the sword cultivation, while the former will automatically devour everything and feed itself, if the cultivation of the sword cultivation cannot keep up with the devouring degree of the sword heart, the sword heart will begin to devour everything that can be devoured, and even eventually devour the essence of the sword cultivation, but if the sword cultivation can withstand the devouring of the sword heart, the sword qi that bursts out is also better than the general sword cultivation, which can be called a model of the weak and the strong。

Therefore, since its appearance, the sword technique has been classified as an evil way by the orthodox sword path, and there has never been a sect vein similar to the Shangquan Sword Palace, the Jade Sword Sect, etc., most eras, only in some large Dao veins there is a systematic inheritance, and most of the derivative secret techniques of protecting the heart and body in the sword refining technique are also developed by these sects with a strong foundation.

However, at the moment, Su Yu's set of spirit sword cultivation heart dao body is the core secret technique that came with the Qin Huang Heaven Slashing Sword at the beginning, this kind of secret technique of using the spirit sword to cultivate the sword heart to suppress the sword heart and extract the spirit sword, and finally protect the cultivation of the sword sword to continuously improve, and at the same time, it can also give birth to a spirit sword that goes hand in hand with increasing power, which is also one of the important reasons why Su Yu plunged into this kind of evil sword path.

Of course, on the other hand, Su Yu's spiritual root talent and the absorption rate of spiritual energy are really miserable, and the existence of the sword heart can be said to have loaded Su Yu with a high-grade spiritual root, and no matter how much spiritual energy is wasted, it will be swallowed up by it, plus the first cage is under the command of Qin Yuniang, while pouring spiritual energy, most of the spiritual energy that Su Yu can't absorb and disperse is deliberately gathered into the sword heart area for him to swallow first.

And the second cage can also infuse a large amount of spiritual energy when the sword heart riots and devours a large amount of spiritual energy, and it can also provide an auxiliary environment that can be called a tide of spiritual energy when Su Yu breaks through the bottleneck when he is promoted to the realm.

It was the existence of the Spirit Sword Cultivation Heart Dao Body and the First and Second Prison Cages that made Su Yu's true cultivation only a few years old, as if the divine help had crossed several bottlenecks, and he was able to touch the bottleneck of foundation building.

And what Su Yu has to do at this moment is to completely let go of the devouring and suppression of the sword heart, use the dantian as an iron felt, turn tens of thousands of sword qi into steel hammers, and smash the entire sea of true qi into a liquid state, and forcibly break through the foundation building realm with force!

Although there are thousands of problems involved, up to the bearing limit of the spirit and spirit, down to the carrying limit of the body, and in the middle is the control of the sword heart, if you accidentally miss a mistake, the best situation is just that Su Yu is like those short-lived sword refining sword cultivators in the past, and she is blown up by the uncontrollable sword qi of the sword, and if you are lucky, you can still keep the soul reincarnation, and if you are unlucky, there is no scum left.

"Time does not wait for me, my life is up to me, not by heaven!"

The divine consciousness that had been meaningless from beginning to end was suddenly shocked, and finally turned into a resolute rock, and Su Yu's divine consciousness plunged headlong into the heart of the sword.

"Humility, let's get started!"

"Don't die!

Above the silver sea of fog, Xu Qianyi's vague golden figure emerged, and after opening a sentence in a muffled voice, he reached out and inserted it into his stomach, and when he took it out, a polyhedral crystal was already dragging on the palm of his hand that was also blurry, and he grabbed it and flipped it down, and a drop of silver liquid began to fall, and the liquid became more and more, and finally formed a silver thread that gradually fell to the sword heart in the center of the sea of fog.

In vain, the sword heart began to frantically devour the liquid aura that fell at the same time, a cyan sword shadow emerged at each node of the sword heart domain, and the sword shadow that was swimming and wanted to run into the sea of true qi just made a little movement but was nailed to death in the core domain of the sword heart under a gravitational force, with more and more sword qi being generated, the cyan sword shadow did not take long to fill the sword heart domain, and the central and western regions of the sea of true qi turned into a mass of sword flowers in all directions At the same time, there were still sword shadows emerging.

"It's not close!"

Firmly imprisoned and compressed in the core area of the True Qi Sea, Su Yu once again separated half of his divine consciousness and spread to the sword flow ring that surrounded the True Qi Sea, this sword flow ring was where Su Yu's body really stored the sword qi of the sword, in order to condense and consolidate this sword ring, Su Yu's energy was no worse than the initial sword heart condensation, and even part of Su Yu's divine consciousness had been solidified here.

In essence, the importance of this sword flow ring is even greater than that of the Jin Yu Sword that floats above the sea of true qi and is also used to suppress the imprisoned sword qi, although both of them have the attribute of refining the sword qi in addition to being imprisoned.

However, unlike Jin Yu, who would directly devour the refined sword qi essence, this was also the reason why the sword heart in the spirit sword cultivation heart body replenished the sword body, and the sword qi essence quenched by the sword flow ring would be directly absorbed by the sword heart.

In addition, the energy level of the sword heart was not very clear before the sword cultivation was promoted to the Inner Dan Realm and formed the sword pill, in fact, the sword heart at this stage was more like a transformation machine, and the configuration level was set at the time of initial condensation, and the daily replenishment through the essence of the sword qi was only slightly improved, although Su Yu's spiritual root was inferior as a weed, but the quality of the sword heart was directly after the sword genius Zhou Yitang, so before the promotion of the sword pill, there was no need to consider the problem of the sword heart at all.

"Give it to me!"

A trace of flesh pain flashed in his heart, but then he was pressed without a trace, Su Yu suddenly drank violently, and at the same time, the divine consciousness that was pulling the sword flow ring also suddenly pulled, and the sword flow ring that was originally smooth and surrounded by the sea of true qi collapsed, and the countless sword shadows began to scatter The next second was imprisoned by a force, and following Su Yu's control, after the two sword shadow streams that were like giant hands on a sunny day gradually formed, they were divided into upper and lower sides, firmly enveloping the entire sea of true qi.

The fluffy silver sea of mist was instantly suppressed together, and even with the compression of the two sword shadow giant hands up and down, the range of the entire sea of fog began to rapidly decrease, until it was less than half of the original volume, and the sea of fog finally touched the core of the sword heart area.

"Give me back!"

A trace of ruthlessness flashed in his eyes, and Su Yu's divine sense of controlling the sword heart also exploded, and the nascent sword qi that was originally compressed into a mass suddenly exploded, but it exploded three times after overlapping, and after turning into a larger sword qi mass, it no longer expanded, but just stubbornly against the sea of true qi outside.

With the sword qi giant hand on the periphery, Su Yu began the space compression stage of the True Qi Sea.

The squeezing inside and outside continued, until the entire sea of true qi shrank to one-tenth of the original, Su Yu already felt that neither the sword qi mass inside nor the sword qi giant hand outside could easily squeeze half an inch, but the true qi inside still did not have the slightest trace of liquefaction, as for the foundation building barrier breaking pill and Lu Qing liquid that were originally poured in, it was even more like a water drift without arousing the slightest effect.

"It's really, it's not a magic or a weapon!"

With a wry smile, the next moment Su Yu was talking to himself, the entire divine consciousness exploded!