Cao Qian calmed down his somewhat excited mood, closed his eyes and felt the surging energy in his body, according to the overview in "Cultivation of Immortals", he should be in the sixth layer of Qi refining now. Don't ask me why, I don't know.

Originally, generally speaking, even some people with special physiques should only have their strength at about the fifth level of qi refining after being baptized by the Temple of Heaven, but this data is only speculation, because every time a talent with a special physique is sent to the 'Upper Realm' to be baptized and focus on training, there is no accurate data on the effect of the Temple of Heaven in the specific Nether Realm on the baptism of some special physiques.

In fact, the hierarchy in the qi refining stage is very simple, mortals have cultivated their physical bodies and comprehended heaven and earth, so as to cultivate the first trace of yuan power, this is the first layer of qi refining, and in the first layer of qi refining, they can use some small charms to fight. In the future, with the growth of Yuan Li, the realm also began to grow gradually.

If you have to explain it in detail, the number of Yuan Qi in the first layer of Qi refining is generally about 1~10, and it varies from the beginning to the peak. There are 20~40 channels in the second layer of gas refining, 80~160 channels in the third layer of gas refining, 300~400 channels in the fourth layer of gas refining, and 800~1000 channels in the fifth layer of gas refining.

And the fifth layer of gas refining to the sixth layer of gas refining is actually a watershed. After the fifth layer, the number of Yuan Qi no longer increases, but gradually tends to merge, improving the quality of Yuan Qi, 1000 to 500, 500 to 250, 250 to 125. And so on, when all the vitality is fused, the ninety-nine return to one, that is, a qualitative change occurs, and true qi is born, and the cultivation of true qi can be regarded as truly stepping into the door of cultivating immortals.

Everything in the world, to remove the false and keep the true, the naked eye is mortal, and most of what we see is only the surface of the substance, but we cannot understand its essence. And the so-called cultivation of truth is to peek into the origin of heaven and earth, cultivate the supreme avenue, and achieve eternity. And only by cultivating true qi can one have this qualification, and the details will not be explained here.

Cao Qian opened his eyes with some satisfaction, although he had reached the sixth layer of qi refining inexplicably, and he was still a little uncomfortable, but his heart was undoubtedly very happy.

He looked up at the sky, and it was a clear blue, as if everything had been the same since he had come in, as if the sky would never be dark. It's weird, but that's how he feels.

He shook his head, not dwelling too much on the issue. It's not too early, and I should go back, otherwise my grandfather should be worried.

Cao Qian walked back slowly according to the way he came before, and his mood when he came and his current mood were completely two extreme contrasts. I still remember that I was so embarrassed that I was going to die when I came, and my whole spirit was about to collapse, and now, hehe, I am full of spirit.

Thinking of this, Cao Qian's heart was relieved again, although this experience was a little painful, but his goal was finally achieved. As long as you go back by yourself and pass on this method of cultivating immortals to the people in the village, then everything will be worth it.

"Huh??"

Cao Qian was walking when he suddenly saw a figure passing through the forest, and before he could see it clearly, it had disappeared.

He quietly chased after him, with his current cultivation of the sixth layer of qi refining, although it could not be regarded as very powerful, but in addition to being a fellow cultivator, and the realm was not lower than his own, he could pose a threat to himself, otherwise the ordinary jungle beast would not even be a vegetable in his eyes. And although the shadow was vague just now, he could clearly feel that there was no threat to him.

"Whew"

The wind blowing in his ears made Cao Qian's face a little painful, and it was the first time he ran at such a fast speed, and he couldn't trust it for a while. If it weren't for the fact that a dark shadow in front of him was becoming more and more obvious, he would have given up a long time ago.

"Ten, Nine, Eight, Seven......"

Just as Cao Qian was about to grab the black shadow and prepare to see its appearance clearly, the black shadow flickered and disappeared out of thin air in front of his eyes.

"Huh?"

Cao Qian stopped a little strangely and looked around, only to find that he had unknowingly come to a small valley. In the valley, there was a human-high stone tablet with a long list of strange characters carved on it, but Cao Qian was pleasantly surprised to find that he actually knew these characters.

"Tibetan Soldier Valley, Xuantian Five Elements Earthquake Flood Wilderness, Hongmeng Dao Yun Casting Soldier Emperor!"

Mighty, domineering, this is Cao Qian's first feeling, this is just 14 words, but it reveals an invisible domineering, a sense of self-respect.

Cao Qian had a hunch that there must be some secret here. But since he came, he wouldn't just leave, even if he didn't get any benefits, it didn't hurt to go and see.

Cao Qian walked cautiously towards the depths of the valley, but he didn't encounter anything strange along the way, there was just a feeling of desolation, yes, it was desolation, I didn't pay attention to it when I was in the outer layer of the valley before, but the further inside, the more obvious the desolation became. The temperature around it has dropped a lot suddenly, and it seems that it should not be far from the place where the 'hidden soldiers' are. You must know that weapons have been a symbol of ruthlessness and cold-bloodedness since ancient times, and all good weapons will unconsciously exude a cold air, strictly speaking, this so-called cold air is actually no different from sword energy, but all weapons that can faintly emit cold energy, the power of sword energy generated against the enemy is far more than ordinary weapons dozens of times, or even more.

And since this is the Valley of Hidden Soldiers, to put it bluntly, it is nothing more than a place to store weapons, and the significantly reduced temperature in the air is likely to be caused by the cold air emitted by tens of thousands of divine soldiers.

Thinking of this, Cao Qian couldn't help but feel a fire in his heart, like that kind of divine weapon, one or two pieces were enough to cause a sensation. It was hard for him to imagine how shocking it would be for tens of thousands of divine soldiers to appear together. Cao Qian quickened his pace, he couldn't wait.

This is a huge stone door, even if there is a door, Cao Qian can still clearly feel the biting cold coming from behind the door. Even if he had stepped into the sixth layer of Qi refining, his body was more than a hundred times stronger than before, even if his self-confidence was unprecedentedly inflated, he thought that the sword mountain and the sea of fire could not help himself, even if he was not afraid of heaven and earth, but at this moment, facing this huge stone gate, he actually had a trace of timidity and a trace of powerlessness. He almost lost the courage to go up and push the door.

"Buzz"

There was a strange fluctuation in the air, and the strange mark on Cao Qian's forehead once again emitted a strange light, and Cao Qian's whole person suddenly relaxed, and his whole body softened. Some looked at the heavy stone gate with some hearts. He knew that he had unconsciously fallen into an illusion just now, and the cold air that seeped into the door might be the medium that produced the illusion, and he was a little afraid to think about it, although he didn't know what this strange mark on his forehead was, but thanks to it, he saved his life.

When the strange light on Cao Qian's forehead was revealed, a ball of green light separated again, and flew towards the stone gate at an extremely fast speed, firmly embedded in an inconspicuous groove on the stone door. At this time, Cao Qian saw clearly that the green light cluster was actually the green bead that he found in his own sea of knowledge when he first entered his sea of knowledge, running around the mysterious gray mist......

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