Today, although alchemy is a thing of the past, its place in history cannot be ignored. www.biquge.info Although the dream of the ancients to pursue immortality has not been realized, alchemy has also played a unique role in improving people's health and prolonging life, which is the so-called Neidanshu. Neidanshu emphasizes the cultivation of the body's internal conditioning, which evolved from ancient guidance and fetal breath. Historically, alchemists mostly emphasized both internal cultivation and external cultivation. External cultivation is based on gold liquid and returning Dan, commonly known as Waidan; Internal cultivation emphasizes the guidance of qi, the maintenance of fetal rest, and the mobilization of yin and yang, which is called Neidan. Alchemists regard the human body as an alchemy system, borrow the terms and concepts of the outer dan, and establish a rich and colorful theory of the inner dan. Especially after the Song and Yuan dynasties, some Dan families turned to specialize in Neidan in view of the hopelessness of immortality, which promoted the development of Neidan techniques. As a health preservation exercise, Neidan has been handed down to this day. At present, a considerable part of the various types of qigong that are widely used are the modern manifestations of Neidanshu. Although the qigong world is mixed, it is recognized that qigong exercise can be used to strengthen the body, and there is naturally a contribution to alchemy.

In addition, alchemy is an experimental activity. Regardless of the original intention of the alchemists, after all, they used experimental methods to explore the transformation relationship between substances, so that it was possible to obtain a correct understanding of the properties of the substances used in their experiments, thereby increasing the accumulation of human scientific knowledge. For example, alchemists often say that "Dansha burns into mercury", which is a correct description of the chemical phenomenon of mercury sulfide heating to produce mercury and sulfur dioxide. There are many such examples.

Alchemy has a very noteworthy achievement, and that is the invention of **. **The phenomenon of charcoal, saltpeter, and sulfur as raw materials, and the fact that the mixture of these three can burn and explode is clearly described in the writings of alchemists. The invention of gunpowder directly changed the development process of human society, and this modern chemistry was produced in the West, and its source is Western alchemy. Western alchemy has its own independent origins, but is also influenced by Chinese alchemy. Chinese alchemy began to spread during the Tang Dynasty, passing through India, Arabia, Byzantium, and finally to Europe. Some of the ideas of Western alchemists were clearly influenced by Chinese alchemy, and they used sulfur and mercury, which were also similar to Chinese alchemy. Western alchemy eventually evolved into modern chemistry, which also included the contribution of Chinese alchemy. ---introduction

"Impossible......"

There was disbelief on Jia's hypocritical face.

And the black-haired zombie in the distance also stopped, with ignorance and doubt in his eyes, and the poisonous insects that had killed a large number of companions because of the attack on the wind quickly retreated, and the three Huojiao came out of the water and didn't know how many partners they were hanged, and without the master's order, they naturally left quickly.

Feng then put away the sword, and there was a look of surprise and disbelief in his eyes: "I, I killed a demon-level person?" It worked? ”

At this moment, the body of Jia Hypocrisy on the boat was falling, and when it fell, a golden light suddenly flew out of his body, which could be seen at a glance with the eyes of the wind......

That's a golden bug!

"What's that?" A golden bug flew out of the corpse?

The wind was shocked and confused, and at the same time felt that something was wrong.

He had a feeling that he couldn't let the golden worm fly away......

However, his whole energy was exhausted, and his fire Jiao water could not reach such a distance.

"Wow~~~"

Suddenly, the whole world changed from day to night, and the bright stars hung high in the night, and countless stars were like a river of stars, and there was a huge full moon suspended in countless stars, and the moonlight of the full moon covered the heavens and the earth, and the gentle moonlight also fell on the golden worm that was flying rapidly.

The gold worm seemed to be very panicked, and flew quickly to escape.

Suddenly, the gentle moonlight condensed into a big hand, and this big moonlight hand gently pinched the golden insect, and the golden insect was even more panicked and shouted: "Spare my life, spare my life." ”

"Smack!"

With a slight pinch of the moonlight's big hand, the gold worm was pinched and crushed.

Then the stars and the moon disappeared into thin air, and the sky returned to its previous day.

"This, this is ......"

Feng stood there with a shocked face, "The stars are all over the world, and the moon is full...... The Silver Tree Boss is still in the state of a stone statue, and who else can make such a scene now-could it be ............ [Relief Heavenly Bath Wind]! ”

(In the era of reality and illusory truth, Tianyu Feng was originally a doppelganger of the Silver Tree, but later, driven by the various tribulations of the Silver Tree itself, coupled with various factors at that time, Tianyu Feng became the only one who broke away from the Silver Tree, had his own will, and completely became an independent person, and then he and the Silver Tree were completely two people, and there was no longer any effect of mutual connection between the fifteenth generation of the main !!!! ）

"You're too careless."

I saw a man with long hair in a cyan robe flying directly in the air in the distance, and he flew quickly with a smile on his face, "I worked hard to kill Najia's hypocritical deity, but I almost let him escape by borrowing the body of the natal Gu worm."

Jia is hypocritical and good at raising insects, so he will naturally raise natal Gu worms, and to kill him, he must naturally kill his natal Gu worms, and he will fall short for Shanjiu, which is unacceptable. ”

Feng understood that he had met a big man, and there was no "relief and heavenly bathing wind" in the hinterland of the Yingyanquan Mountains, so he immediately bowed and saluted: "Feng has seen his predecessors." ”

…………

Subsequently, Tianyufeng didn't say anything to the wind, but the bone sword that helped the wind was upgraded to Otsukaya, and the relief Tianyufeng took off as soon as it took off~~ There was no shadow.

The wind is also inexplicable, why do you have to upgrade this bone sword? I have a lot of swords, so why do I have to choose this bone sword? Feng Wanwan couldn't figure it out.

However, at this time, how did Feng know that he was not far from the catastrophe of the big things related to the thousands of swords he carried......~~

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