Now that the cyclone in his body has formed the appearance of a deep valley, what Su Yang has to do now is to imitate the scene of the change of day and night in the outside world.

Su Yang sat cross-legged on the bed, stabilizing the cyclone in his body while thinking about how to imitate the scene of morning and evening in his body.

Although there is no sun, moon and stars in this underworld, and the day and night are controlled by reincarnation, there is also a distinction between yin and yang. The day is yang, the night is yin, the early morning is the time to change from yin to yang, and the evening is just the opposite. Therefore, the two time periods of morning and evening can also be said to be the time when yin and yang are first born, at this time, there is yang in yin, and yin in yang, which is the most balanced time for yin and yang in the whole heaven and earth.

Thinking of this, Su Yang secretly said in his heart, this intersection of yin and yang is very in line with the current state of internal qi in his body, but how can he separate yin and yang? You must know that the yin and yang of day and night, but with the change of time, the alternation of day and night can be separated. But how should he create this scene of day and night, which is incomprehensible to Su Yang.

Seeing that there is only one step left in the sea of condensing qi, but this step is the most critical, and there is no room for the slightest mistake. Could it be that he can only stop here? Su Yang shook his head, originally planning to ask Master Qu Feng, but Qu Feng has been busy recently, and he can hardly see people, so Su Yang is naturally embarrassed to disturb.

The hard thinking made Su Yang's brows furrow for a while, and time passed little by little, and the day and night outside the window had changed several times, but Su Yang naturally didn't know about it.

"Alternate day and night?????? Yang energy rises lightly?????? Yin Qi is turbid and descends ??????" Su Yang muttered softly to himself, ready to put his thoughts on one last wisp, if he really had no clue, he was ready to give up today.

However, at this moment, a thought suddenly appeared in his mind: Yes, the two qi of yin and yang have their own attributes, and the vitality has always been controlled by me, thus covering up the respective characteristics of yin and yang of the yuan lift. If you let it go, you can't say that their respective characteristics will be reflected.

As soon as he thought of this, Su Yang faintly felt that he should have grasped some clues. I saw that he slowly condensed the vitality of his whole body above the cyclone funnel, and Xuan even gave up all control, and then quietly watched the changes in those vitality.

After the initial tumbling surge, those vitality slowly stopped like clouds. And at this moment, I saw a change of color in the vitality mass. The original white mist-like vitality has been divided into two layers, from the bottom to the top, the first layer is cloudy white, and the second layer has become a little faint and ethereal.

Seeing this, Su Yang was ecstatic in his heart, he didn't expect that what he thought of as difficult could be achieved so easily. In fact, Su Yang didn't know that between heaven and earth, everything was nothing more than this, if he could think of this step, naturally everything would be extremely simple, if he couldn't think of it, it would be very difficult. This can also explain why there are many monks in the world, but His Holiness only talks about dozens.

Of course, Su Yang didn't think so much about it at this moment, he stared at the changes in the Yuan Qi mass motionlessly. Slowly, the turbid yin qi in the first layer had already descended down the cyclone funnel and converged at the very bottom of the dantian. And the clear yang qi was still like a cloud and mist, shrouding the top of the dantian.

After a long time, Su Yang's dantian has undergone earth-shaking changes. The cyclone that was originally located in the center has long since disappeared, and has been replaced by two yin and yang cyclones in the top and bottom of the dantian.

Between the two cyclones is an elongated column of air that connects the centers of the two cyclones. The yin and yang cyclones rotate one in a direction and one in a reverse direction, although the direction is different, but there is an indescribable rhythm in it.

It's time!

Su Yang only began to control the two cyclones again at this time, and the air flow from the outside world entered Su Yang's body, and naturally he was pulled by the yin and yang qi of the two cyclones, divided into two breaths, which poured into the cyclone respectively.

Su Yang's mind flashed the description of the two qi seas in the Qi training chapter of the "Ascension Technique", and began to prepare to condense the qi sea and break through the qi refining period. As long as the sea of qi can be successfully condensed today, Su Yang's qi refining period will be completed, and when it is stable for a while, he will be able to build a foundation. After the foundation is built, it can be regarded as truly stepping on the road of cultivation.

Putting aside these inconsequential thoughts, Su Yang began to impact the sea of condensed qi according to the record of this "Ascension Technique". The requirements of "Ascension Technique" for condensing the two qi seas are very simple, and there are only two words to sum up - suppression.

To completely suppress the two yin and yang cyclones in the body, constantly let them contract, and finally let the internal qi in them become the same as the flow of water, and the two cyclones must be truly transformed into two whirlpools, so that the real sea of qi condensed successfully.

Now that the most important step has been completed, and the two qi of yin and yang have been completely separated, the next thing will not be difficult for Su Yang. Although it was a bit troublesome to suppress these two cyclones, with Su Yang's perseverance and understanding, it was not necessarily too difficult.

Wow!

I don't know how long it took, but suddenly a sound came from Su Yang's dantian, as if it was a wave crashing against a reef.

Immediately, Su Yang's eyes opened, and a fine light suddenly flashed in his eyes, like a sword. At the same time, Su Yang's senses were also a lot more sensitive, and the wind and grass within a few feet around him couldn't hide from Su Yang.

Not only that, but the fingers of the two sword qi seals were also hot for a while. Looking down, I saw that the two runes flashed on Su Yang's fingertips for some reason, and Su Yang also suddenly discovered that these two runes could be drawn with one stroke, but now, it seemed that there was one more stroke.

Discovering this anomaly, Su Yang secretly said in his heart, could it be that this sword qi seal technique can still grow with his own cultivation? Looking at it like this, it should be like this.

In fact, Su Yang's guess was only half right, the Sword Qi Seal Technique would grow, but it had nothing to do with his own cultivation. It was only because the immortal power sword qi in Su Yang's body had increased that the sword qi seal would grow. If the immortal power sword qi does not improve, even if Su Yang seems to have reached the tribulation period, the sword qi seal technique has not changed at all.

Although the Sword Qi Seal Technique will not grow due to the growth of internal qi, it will still consume internal qi quite when released, after all, the immortal power sword qi in Su Yang's body can only grow by absorbing half of the vitality that Su Yang cultivated when he was cultivating.

Su Yang looked at his fingertips, and a slight smile appeared on the corner of his mouth. The power of this sword qi seal technique, he had a deep understanding of it when he fought against Du Ling before, and being able to kill the enemy across the ranks was definitely a powerful killer skill. And now that this sword qi seal technique has actually grown a little, the power will only be more amazing.

"Senior brother, have you finished cultivating?"

Su Yang was thinking about it, when he suddenly heard a crisp sound from outside the door, followed by a few knocks on the door, it was Qu Ling.

When Su Yang heard this voice, he smiled slightly, stood up, and walked towards the door.