"What's the price?" Lin Tianyou asked curiously. He only knew that there were many benefits to entering the three gates of heaven, earth and man, but he had never heard of the price.

In fact, even Ye Qing is the same. So many people outside argue that they want to enter the three gates of heaven, earth and man. Isn’t it all for the purpose of becoming the supreme and dominate the world? But who has ever heard that entering the three gates of heaven, earth and man has to pay a price?

"Haha" An Shiping smiled bitterly and said, "I can't say this price. Once you say it out, the world will inevitably be in chaos. However, you must remember my words, unless you have to, never enter the three gates of heaven, earth and man. If you really want to enter, then do you have to enter the Tianmen no matter what!"

Seeing An Shiping's words so resolutely, Lin Tianyou nodded and said, "Master, don't worry, I have never thought about this three things about heaven, earth and man. I am just a doctor, and it is enough to learn better medical skills and treat more patients."

An Shiping smiled with satisfaction. Lin Tianyou's thought made him even more satisfied with Lin Tianyou.

"I will feel much more at ease if you think this way." An Shiping smiled and said, "I can't tell you about the three gates of heaven, earth and man, but I can also give you a little bit of a message. Let's put it this way, from ancient times to the present, the three gates of heaven, earth and man have existed for thousands of years, but do you know what the final result will be for those who have entered the three gates of heaven, earth and man?"

"What is it?" Lin Tianyou said strangely. No one has ever said this. He only knows that these people are not rich, they are noble, either rich, supreme master, or a founding emperor. However, no one knows the final result of these people.

An Shiping whispered: "These people were all dead in the end!"

"All dead?" Lin Tianyou was stunned at first, and then said, "Master, this is nothing strange, right? People will die. It's been so many years since they're not dead."

"Hmph." An Shiping shook his head gently and said, "I'm talking about death, it's not that simple. If you have the chance, look at the graves of these people and you will know what I mean."

"Their grave?" Lin Tianyou was surprised and said, "What's wrong with the grave?"

"If you have the rest, I can't say it anymore. It will cause chaos. Even if you know this, don't spread it out, otherwise the world will inevitably be in chaos." An Shiping waved his hand and continued: "Okay, let's talk to you about Yaowang Mountain. I found Sakyamuni Wuji and the True Buddha, joined forces with them to set up a mountain sealing formation. This mountain sealing formation will always exist. Unless it is someone I allow, or someone holding the divine doctor's post, no one else can come in. You are my disciple, and I will pass on Yaowang Mountain to you, and you are the master of Yaowang Mountain. In the future, without your permission, outsiders will not want to enter Yaowang Mountain. Therefore, Yaowang Mountain is your own thing, and no one can take it away!"

Lin Tianyou did not refuse again this time because An Shiping said it clearly just now that Yaowangshan could only give him one person. At this time, he didn't want to make the master feel uncomfortable.

"After passing Yaowang Mountain was passed on to you, the only one who could enter and exit Yaowang Mountain freely was Xiaolu. Others wanted to enter Yaowang Mountain unless they were holding the divine doctor post." An Shiping looked at the eight divine doctor posts next to him and said, "This divine doctor post is my symbol and the symbol of my divine doctor. I hope you can pass on this divine doctor post and hand it over to those who have kindness to you. Those who hold the divine doctor post can enter Yaowang Mountain and find you to treat your own illness!"

In An Shiping's era, the divine doctor's post was used like this. Those who took the divine doctor's post and came to Yaowang Mountain, they would receive the help of the divine doctor An Shiping.

Lin Tianyou nodded and said, "Master, I will definitely continue this tradition!"

"That's good!" An Shiping nodded and said, "Okay, I've finished explaining what I should explain. Now, I will teach you everything I have learned. However, before that, I have to send those people on the mountain out first."

An Shiping said, waved his hand to the giant python Xiaolu next to him. Xiaolu knew it and immediately turned around and went out.

"Master, I have friends who are still on the mountain, why don't I explain to them first?" Lin Tianyou said: "They probably should be worried if they can't find me for so long."

"No need!" An Shiping shook his head and said, "I will meet again when I go out in the future. Now the most important thing for you is to understand the road inside the mountain. Also, there are several of the most important things in this Yaowang Mountain. You have to recognize it clearly. This is the key to the fact that Yaowang Mountain can grow so many medicinal materials."

An Shiping said, leading Lin Tianyou to walk in the cave and introduced everything in the cave to Lin Tianyou. Lin Tianyou followed behind and wrote down everything in the cave with his heart. He knew that this was the key to whether he could walk out of the mountain in the future.

After the two walked for a while, a chill suddenly came from the front, which made Lin Tianyou tremble involuntarily and said, "Hey, why is it so cold here?"

"Here." An Shiping smiled, pointed to a stone wall in front of him, and said, "This place is inlaid with a piece of ten thousand-year-old cold iron, which I found from the coldest place in the polar regions. The ten thousand-year-old cold iron is extremely cold, and can turn the surrounding environment into a cold land. It is precisely because of this ten thousand-year-old cold iron that there is an iceberg outside this Yaowang Mountain, which can plant many cold-loving medicinal materials, such as the snow lotus. By the way, there are also ice toads, who especially like the environment here."

If Ye Qing heard it here, he would definitely be surprised because he saw the nine-leaf golden dragon blood lotus and the ice toad. Ye Qing was surprised at that time, why is there only one place on the mountain so cold? Now he has found the answer. It turns out that it is because of the ten thousand years of cold iron.

Lin Tianyou scratched his head and suddenly asked, "What is the ten thousand-year-old cold iron?"

"If you want to know what a thousand-year-old cold iron is, you must first know what a cold iron is." An Shiping said: "The so-called cold iron is actually a rare metal, which likes heat and can absorb heat."

"Is this still called cold iron?" Lin Tianyou said in surprise: "The metal that likes heat should be called hot iron?"

An Shiping glanced at Lin Tianyou and said, "You are wrong. This metal likes heat and will suck away the heat around it, thereby reducing the temperature around it, so it is called cold iron."

"So that's it!" Lin Tianyou suddenly realized.

"The so-called ten thousand-year-old cold iron is to suppress cold iron that has been suppressed for more than ten thousand years in the coldest place in the polar region. The cold iron temperature is particularly low, which is even lower than the cold iron. In this case, the temperature of the cold iron will be released. The longer the suppression time, the more heat the cold iron will release. When you take out this cold iron and put it in a place with a higher temperature, the cold iron will quickly stay with the outside heat, thereby reducing the temperature around and achieving the purpose of cooling." An Shiping said: "That corner of the cold land on my mountain was created. Using cold iron, it absorbs the surrounding heat, so that the temperature of this place can grow at the temperature that those cold-loving plants can grow."

"Oh." Lin Tianyou understood completely, but he quickly said in surprise: "But, how much heat can such a piece of cold iron absorb? How long can it last?"

An Shiping said: "The cold iron does not release heat quickly, and it does not absorb heat quickly. This piece of cold iron has been stored in the cold place for ten thousand years. Then it will take ten thousand years to absorb heat. Therefore, you don't have to worry about the situation in Yaowang Mountain at all. This piece of cold iron is enough to support it for ten thousand years!"

"Wannian?" Lin Tianyou said with a shocked face, "Is there such a magical thing in this world?"

"The world is so great that there are all kinds of wonders." An Shiping smiled and said, "There are things more magical in this world than Han Tie."

"There is something even more magical?" Lin Tianyou said curiously: "What is that?"

An Shiping said: "It is a kind of metal without weight that can float in the air without being affected by gravity at all."

"There is such a thing?" Lin Tianyou was shocked again. In fact, if Ye Qing were here, he would not have been so shocked. Because the golden silk armor and sun shooting bow that Ye Qing had seen were all like this, and it had no weight at all.

"As it said, the world is so big, everything is strange." An Shiping said: "When you go out in the future, you will see more things, and you will understand that what I said is true. As for the metal without weight, I hope you will never see it in your life."

"Why?" Lin Tianyou said strangely.

An Shiping sighed softly, shook his head, and did not explain to Lin Tianyou. Only he knew the reason.

After taking Lin Tianyou all the way, An Shiping completely introduced the situation in the Medicine King Mountain to Lin Tianyou. The ten thousand-year-old cold iron just now was enough to surprise Lin Tianyou. However, he saw another ten thousand-year-old red iron, which once again subverted Lin Tianyou's worldview.

Ten thousand years of hematite is exactly the opposite of ten thousand years of cold iron. Ten thousand years of cold iron has made a corner of the iceberg in Yaowang Mountain, while ten thousand years of hematite has made a high-temperature zone. In this high-temperature zone, An Shiping planted a batch of heat-loving medicinal materials, including an extremely precious fire crow, but these are existences that even Ye Qing had never seen before, and Lin Tianyou had never seen them.
Chapter completed!