The Middle Thousand Worlds is a visible work in which the ideology of the real world is transformed into the spiritual realm. Therefore, the knowledge and ideas involved in human civilization are only manifested here.

The library is the place where civilization is distributed. Physical libraries around the world will complete their virtual inventory tasks by the end of 2049. It has a collection of hundreds of millions of materials and books. There are also nine thresholds here. The first threshold is the newspapers and magazines that are being issued in reality. The second threshold is historical periodicals, which are periodicals and magazines that are more than 20 years old. Older periodicals are also hidden here.

The third threshold: the collection of various knowledge studied by human beings today. The knowledge of the various subjects that students are learning. Vocational education and technical training for adults. As well as a variety of life survival skills, experiential knowledge are at this threshold.

The fourth threshold: picture data, audio data, video data. The world in which human beings exist, with pictures and paintings, gives the world a shape and a shape. It focuses on the exercise of the human soul by vision. With sound, there is language, and with language is able to communicate, which will resonate with different individuals. Language is the product of human resonance. Human beings are no longer lonely and can express the closest to the truth of the human heart. It focuses on the training of the human soul by hearing. Video is a combination of sound and pictures. Pictures need to be spiritual, dynamic. And the sound needs to have an image to maintain.

The fifth threshold: religion, the various religions of the world, people's beliefs.

The sixth threshold: the unexplained questions of mankind, that is, the mysteries of mankind. Including divination.

The Seventh Threshold: The Legend of the Human Soul. The world of human consciousness, the exploration of dreams.

The eighth and ninth thresholds were never opened. As for the name, it has never been disclosed.

Yi Hui crossed the first threshold first, although the first threshold to the third threshold seemed very close. It seems to be only 100 meters away, as long as you look to the left and right. Everyone will be intrigued, at least the first threshold is a summary of recent events. And the broadcast and analysis of each event is carried out by professionals from time to time. There are also comments and criticisms from those who have experienced it. After all, it is in the spiritual realm, so the events shown are all real projections, as long as the audience stops here, it is like experiencing it personally, and after the music, the mood is up and down, no less than watching a movie.

It's the first time I've been here, after all, reading books in the library is a very casual thing. In the past few years that Yi Hui has been in the Crossing Alliance, he has carried out no less than hundreds of tasks, at least there are indeed a lot of things that harm others and benefit himself, because as long as it is to complete the task, unscrupulous means have become commonplace. So this disdainful virtual experience is also constantly torturing Yi Hui's soul. Yi Hui struggled, inevitably a little painful, but for the sake of the memory of the past, Yi Hui really fought. Nowadays, I don't go home often, I don't go back to the dormitory often, and I don't often go to see Master, but I often go to the Spirit Realm Pavilion and stay in the virtual world for the longest time. In the past two years, I have been dreaming of shuttling through the worlds. And only the library is easy to go back to dare not go, I don't know why? The library's Nine Thresholds and Nine Heavens have nine in their names, and even the division of the thresholds is very similar to the Nine Heavens.

The construction of high school disciplines, especially the construction of mathematics, is inadequate. So it's not exciting to learn from the library of the Middle Thousand Worlds. This clue was provided to Yi Hui on a sunny day, so Yi Hui is really looking forward to it. Because of this in mind, the first threshold and the second threshold, Yi went back and walked around, or returned to the right path, and went straight to the third threshold.

When a majestic gate is closed, there are two large characters on the lintel: the third.

Everyone pushes open the door, and Yihui is no exception. With a gentle push of both hands, the door opened. The harsh white light stimulates the eyes that are easy to return. When the eyes get used to this level of brightness, it's easy to look back at the open area. This is a closed area, which is said to be closed, but the space is amazingly large, and when you look at it from a high place, it turns out to be a blue sky and white clouds, as if it is outside. Looking down, it is like an abyss, unfathomable, although there are steps under your feet, all the way to the ground, if you go down, maybe you may not be able to go out in half a year. Yi Hui was only less than two meters away from the edge of the abyss, so he had to go to the left, and he didn't know if it was Yi Hui's dazzle or hallucination, just at the edge of the abyss, a path led ahead, and in front of him was a big mountain, and Yi Hui even saw the ice and snow of the distant peak. Yi Hui stopped, no longer walking to the left, and looked at the path that appeared suspiciously, as if it had appeared out of thin air, looming. A young path that leads to the peak.

Yi Hui looked at the path looming, and Yi Hui felt a little unbearable. How can you have such a dangerous road. Yi Hui took a tentative step, his focus on the edge of the abyss. After stepping on it, there is a sense of solidity. I stepped on it hard, and it was fine, step by step. Step by step, I walked to the middle of the abyss, and there was only an endless abyss on both sides, and I always felt that I accidentally stepped on the air and fell into the abyss. It's just that if you are timid in your heart, no matter how good the road is, you will be worried that you will not be able to finish it. If your heart is horizontal, what can you do if you fall, and you can't die. So Yi Hui simply ran away. After running for 80 meters, you will reach the opposite mountain pass. Yi Hui looked up at the hillside, there was no one, and the path that winded upwards was rugged and difficult to walk.

Is this the third threshold? Easy to return feels a little incredible. There are no bookshelves for book display, only an insurmountable chasm. What's going on here? I didn't see the narrator's large explanations, and some of them turned out to be adventure-like puzzles.

Yi Hui didn't understand the setting here, so let's go to the top and see the whole look! What's more, the mountain road is rugged, and there are strange flowers and plants on both sides of the mountain road, and it is impossible to name them. I accidentally touched a few small white flowers, and the petals had the color of egg yolk, and a line of small words appeared in the air, and the egg flowers were instantly diffused. This seems to be a bit redundant. Yi Hui touched other flowers and plants, and there was a similar situation. However, some weeds are not labeled. Yi Hui on a small break, it is necessary to run up, otherwise you can't climb up, there is a platform halfway up the mountain, there is a simple stone table and a small stone bench on the platform. At a cliff, on the gray rock, a few big red characters are clearly engraved: There is a road in Book Mountain. Yi Hui smiled, "There is a road in Shushan. I can't see these eye-catching big characters at the bottom of the mountain! Yi Hui muttered to himself.

Yi Hui is not tired, so he does not rest on the small stone bench. After all, going up the mountain to see the true face of the third threshold is the right thing to do. When the body and mind that are easy to climb back are tired, the sun is still shining, the sun is abundant, and the sun is hot on the body. Yi Hui walked and saw many warning words carved on the stone walls. Finally, after I was afraid to reach the top of the mountain, I saw the fog and mist in the distant mountains, and the heroic mood in my heart became more and more vigorous. The pine trees on the top of the mountain not far from the opposite side are really unusual, and the stone crevices of the cliff grow tenaciously, and the exposed roots are like dragons winding into another stone crevice. Yi Hui was attracted by the beautiful scenery on this mountain, and he didn't want to go down the mountain for a long time. When the fog cleared, there was a sea under the mountain. Sitting on the stone, I was in a very good mood, and I raised my hand to release the water.

"It's so beautiful! It couldn't be more appropriate to describe it as relaxed! "The water speaks to itself, completely immersed in the beautiful scenery.

"Hey! Shui'er, calling you out is not to express your feelings, help me see what kind of place this is. I'm here for the first time, you're a smart virtual human and can tell me useful information. ”

Shui Er turned around and floated in, "Stupid master, are you really here for the first time?" Alas! Unfortunately, you can only stop there. ”

Yi Hui was confused, so he asked, "What do you mean?" ”

Shui'er looks arrogant, there are not as many things in this world as she knows, and she is alone and seeking defeat.

"Stupid master, listen up, this is Book Mountain. Every little detail you just experienced from the bottom of the mountain is a science that students can learn in the classroom. Including the math that has been your biggest headache lately. ”

Looking at Shui'er's rhetoric, Yi Hui had no choice but to go back, "You said that mathematics is also under my feet?" ”

"You can say that, right? Book Mountain is naturally a mountain made up of various books, and the mountain here is as beautiful and magnificent as the mountain in reality. If you want to read and learn knowledge, you can only climb, dig and explore by yourself, which is the educational philosophy of many years ago. ”

"I seem to know all of this! Be clear, don't be foolish. "Yi Hui is a little anxious, Shui'er is like a teacher, and he has learned to sell Guanzi.

"Hee-hee! If I tell you what reward you give me? Shui'er's changing expression made Yi Hui stunned, this won't be sunny and rainy again! How is it so similar?

"Ugh! Whatever you want, I'll find it for you! Yi Hui said unashamedly.

Shui'er glanced at Yi Hui and disdained it, but still said seriously: "The library is a thousand worlds in the spiritual realm......" Shui'er was like a robot, and told Yi Hui about the encyclopedia knowledge of the library. Yi Hui finally got tired and said, "I agree to your request." ”

"Do I have any requirements?" Shui'er said slyly, "Do you really know what I want? ”

"Isn't that just, a feast of soul power? However, you'll have to wait until I get a chance to go to Grandpa Soul Tree and ask for some. Yi Hui said a few words inexplicably.

Shui'er rolled her eyes, and she agreed. There is no nonsense in this opening.

"Library, the third threshold is most famous for the mountain of books. The mountain in front of you looks like a mountain, but it is actually another manifestation of book knowledge. Although books in the form of words are not outdated, modern people have a stronger sense of time, so they have changed words and turned into shapes. Words have things, words have tangibles, words have it, and this is to look at the world from the perspective of a third party, to listen to the world, to feel the world. Words can communicate people's hearts, and it is entirely the intention of words that plays a decisive role. With the rise of spiritual realm, the form of words has weakened, and it is directly an eye for an eye, an ear for an ear, and a heart for a heart. ”

"Stop! Water! Say no more! What you're saying is so profound, can you be more straightforward and understandable? Yi Hui doesn't want to interrupt Shui'er, it's just that Shui'er's thinking is becoming more and more professional, so who can stand it?

"Stupid master, don't interrupt me. My words are in the key sentences: taking books as a mountain is to show the world the sound and meaning of words, why don't you really go up the mountain to see what is the difference between the book mountain? One flower, one grass, one world, one person, one animal, one universe. ”