It was early in the morning when he returned to his room, but Lin Yu didn't have a trace of sleepiness. He just wanted to quickly figure out the content of the black book.

Under the candlelight, Lin Yu quickly flipped through the black book.

"Essence?"

"I see!"

The opening chapter of the Black Book spent a lot of time introducing something called Jingqi.

According to the description in the book, essence is divided into congenital essence and acquired essence.

The congenital essence is innate, it is born with it, and represents the source of life. Damage to the congenital essence will lead to weakness of qi and weakness, and death if it is too severely damaged.

The acquired essence can be ingested from the outside through specific means.

The yang qi I heard from Scarman before is actually part of the essence of innate.

According to the book, the innate essence is the union of yin and yang. Once the innate essence differentiates into yin and yang, it means that you are not far from death.

For example, when people fall into extreme fear, it will cause the innate essence to differentiate between Yin and Yang. Once the Yang Qi escapes, people will lose their vitality.

commonly known as scared to death.

The reverse is also true. If a person is killed by an external force, the innate essence in the body will begin to differentiate between yin and yang, and the yang will automatically merge into the world.

"Yang Qi is the energy of growth, the energy of the body, and Yin refers to the physical body..."

"I thought that Yang Qi is the Qi of the living, and Yin Qi is the Qi of the dead. It turns out that I was wrong."

After reading the introduction of essence, Lin Yu finally understood that the yang and yin here do not refer to life and death, nor do they refer to men and women.

Yang transforms into qi, and Yin transforms into shape.

Yang here refers to energy, while yin refers to matter, the matter that makes up the body's shell.

Yin and Yang are one, which is the living body.

After knowing this, Lin Yu can understand why he can absorb the characteristics of an animal that has just died and use it for himself.

is because the innate essence of the animal that has just died has not yet differentiated, and what oneself absorbs is actually the innate essence of the animal, which is the source of life.

It is this life origin that allows one to acquire certain traits unique to that animal.

And if the animal's innate essence is exhausted long ago, then even if it is fully absorbed, it will not be able to obtain the characteristics. For example, an animal that dies of old age and disease will have its innate essence long gone.

Lin Yu continued to look down, watching, and seeing another concept called Yin Qi.

"So how did Yin Qi come from?!"

Yang represents the energy of the living body, and yin represents the shell of the living body.

After the death of the living body, its innate essence differentiates between yin and yang, and the yang qi automatically returns to the world, leaving only a pure yin body.

But this does not mean that the energy in it has completely dissipated. In fact, a part of the energy is still consolidated in the organization of the dead living body.

This part of the energy will slowly dissipate, and there is a certain chance that it will be consolidated on the surrounding dead objects, such as metal rocks and so on.

This kind of energy is called yin qi, and it is usually found in graves.

"Yang Qi is energy, and Yin Qi is also energy. The essence is the same."

Lin Yu touched his chin and continued to read the black book.

In the following pages, monsters and tricks are mentioned.

There are four evil things in the world: monsters, demons, tricks, and strange things.

The demon is a collective term for all non-human creatures with intelligence, such as flowers, birds, insects, fish, plants, and beasts, all of which can cultivate into demon.

Its practice method is to absorb the innate essence of other life forms through special methods, and refining it into monster energy to increase cultivation.

The more demon-like demon, the higher the cultivation base.

monsters are divided into two categories, one is the monster that can transform into a human, and the other is the monster that maintains its original form all the time.

The former absorbs the innate essence of human beings, while the latter absorbs the innate essence of non-human beings.

There is no difference between the two demons.

It is nothing more than that some demons like human life and want to get involved in it, while some demons are used to staying in the mountains and wilderness, choosing different methods of practice based on different purposes.

"It seems that the skunk that I encountered last time was cultivated by absorbing human innate essence all the year round. It used to seduce me because it wanted to absorb my essence."

Lin Yu put down the black book, leaned back on the chair, and wondered about Yuanneng.

Yang Qi and Yin Qi are both energies, and demon qi, according to the book, is also a kind of energy, which is unique to monsters.

Lin Yu discovered that these energies seem to be able to be used for his own use.

The last time he killed the skunk, he got 110 vital energy. I didn't know it before, but now it is clear that these vital energy came from the only remaining evil spirit of that monster.

"So, Yuanneng is the collective name for all energies?"

Lin Yu touched his chin, frowned and meditated for a while, then sat back upright and continued to read the black book.

The following content is all related to the trick.

Kiddy is a pure energy body, intangible and intangible.

It needs to constantly absorb external energy to maintain its existence. Of course, absorbing energy can also make it stronger.

There are only two kinds of energy that can be used by Kui, Yang Qi and Yin Qi.

As long as the former can be absorbed, it can be directly converted into the energy it can use, while the latter needs to be processed by special means.

However, the book does not introduce how the yin-qi is turned into one's own use, nor does it introduce the origin of the guilty.

Not only that, but the two parts of monsters and monsters are also completely missing.

is mainly because this is an introductory book on spiritual practice, which only introduces the content related to spiritual practice.

The essence, yang, yin, etc., are all related to the following cultivation methods, so I will focus on the introduction.

As for why the demon is introduced in such detail, it is because the demon's cultivation methods are similar to those of human beings.

"The evil thing after the transformation of the two corpses of the He Wen and Wu brothers, is it strange?"

"Or is it a demon?"

Lin Yu raised his forehead in thought.

Those two evil things are obviously neither demon nor sly...

"No, those two things cannot be monsters or monsters."

The reason why demons and monsters are not introduced in the book is because these two have nothing to do with yin, yang, and essence~www.mtlnovel.com~ and those two evil things can absorb yin.

"Forget it, I'll learn about these later, let's see how those people practice."

Lin Yu put this question behind his head and continued to read the black book.

Most of the following books are all about spiritual practice, which is the practice of human beings.

mentioned that the method of human practice is to absorb acquired essence from the outside world and refine it into source energy.

However, the book doesn't say how to absorb the essence of acquired nature at all. It's all about how to refine the source energy and how to use it.

Not only that, Lin Yu also found that this book did not mention how to step into the path of spiritual practice.

"It shouldn't be something everyone can practice. If everyone can practice, the court can open up the doors of practice, greatly expand the number of practitioners, and wipe out all the monsters in the world."

Lin Yu guessed that there must be some kind of innate condition that restricts human beings, resulting in only a small number of people being able to practice.

In other words, a special ceremony is needed to allow a person to step into the path of practice.

"I'll talk about this later, and first figure out what Gen Qi is."

Lin Yu pondered the origin energy mentioned in the book.

It is said in the book that Origin Qi is refined from refined qi. Generally, what is refined is the essence of acquired nature, that is, the essence of the outside world.

Under special circumstances, it can also refine the innate essence in the body.

However, refining the innate essence will lead to a reduction in lifespan, and there will be no practitioners to do such stupid things as a last resort.

"That Yu Chirong suddenly exploded with a huge force, it seems that it was because of the refining of the innate essence in the body."

Lin Yu nodded slightly, and continued to read the black book.