During the Zhenguan period of Taizong of the Tang Dynasty, there was a master surnamed Liu in the Yuntai Temple of Huayin who went on a hunger strike to practice the Taoist's qi-holding skills, and one practice was twenty years.

Every three days of the first month (the fifteenth day of the first month, the seventh month, and the fifteenth day of the tenth month) when he had a vegetarian fast, a man with a dark and thin face wearing a single robe with wide sleeves would come to him, sit on the last seat, and leave after eating.

For more than ten years, this person always came to eat on time, and his clothes and appearance did not change in the slightest.

It was very strange, so I asked the man where he came from.

The man said, "My name is Zhang Gongbi, and I live in the recess of the East Mountain of Lotus Peak. ”

Thinking that it was a place where no one could find it, he asked Zhang Gongbi to take him to see it.

Zhang Gongbi happily agreed: "I'm very interesting there, you must be very happy to go and see it." ”

followed Zhang Gongbi away.

After walking for twenty or thirty miles, there was no road, so I had to drag Tengzi and climb Ge Luo to reluctantly find the way.

The cliff is very steep, and even apes are afraid that it is difficult to cross, but Zhang Gongbi doesn't care as much as if he was walking on a flat avenue.

It was not difficult to climb over the mountains and cliffs.

Later, the two men came to a stone wall that was more than a thousand feet high, as steep as a knife, and below it was a bottomless valley. There is only a few inches in front of the stone wall, and Zhang Gongbi can stand on tiptoe.

At this time, Zhang Gongbi knocked on the stone wall with his fingers, only to hear someone in the stone wall ask, "Who is it?"

He replied, "It's Zhang Gongbi." ”

Then a door suddenly opened on the wall, and the heavens, the earth, the sun and the moon could be seen in the door, which was another world.

Gongbi walked into the door, and he also wanted to follow up, and the person who opened the door asked Zhang Gongbi angrily: "Why do you bring outsiders casually?"

Zhang Gongbi said to the janitor outside: "He is not an outsider, he is from Yuntaiguan, my old friend, so I invited him to come." Why should you turn him away?" and then the door was opened again, and let them in.

Zhang Gongbi said, "I'm already hungry, please prepare a hearty meal for him." ”

The man who opened the door asked if he wanted to stay, and said he would come back later.

So the man brought a bowl of water, scooped out a little powder with a spoon from a green cloth bag behind his arm, and put it in the water, and let him drink it, and felt that the water was very sweet, and he immediately became neither thirsty nor hungry.

Zhang Gongbi said to the man: "I told him yesterday that it is very fun here, why don't you make a trick for him to see?"

The man sprayed a mouthful of water into the valley to the east, and in a moment a green dragon and a white elephant appeared in the air and danced beautifully. Then there were two phoenixes and Luan singing to each other, and the singing was clear and beautiful.

After a while, Zhang Gongbi sent out the stone wall and sent him home.

Looking back, I saw that it was still a cliff, and everything just now was gone.

When he arrived not far from Yuntai Temple, Zhang Gongbi took his leave.

After returning to Yuntai Temple, after dealing with some things, he went to find Zhang Gongbi.

However, the mountain is high and the road is dangerous, and there is no way to the stone wall anymore.

I regret that I didn't stay in the stone wall at the beginning, and when I think about it, I cry out to the heavens and the earth, and even get back pain because of it.

Zhang Gongbi has never been to Yuntai since then.

In the "original text" Tang Zhenguan, there are people in Huayin Yuntai view, refining qi grains, and it has been for 20 years. Every three yuan fasting, then see a person, sewing clothes, back to Mucuna thin, come to sit at the end, and go after fasting. This has been the case for more than ten years, and the color of the clothes has not changed. The mage asked differently, and said: "Yu's surname is Zhang, his name is Gongbi, and he lives in the east corner of Lotus Peak." "The mage means that there is no one here, please go with you. Gongbi Yiran Xu Zhi said: "This is very happy, the teacher can live, and there should be no boredom." The mage then followed the priest. Thirty or twenty miles, there is a bird path. Its cliffs and valleys are extremely dangerous, although the apes can't cross it, and the public is like a road. There is no difficulty for the mage to follow. Then to a stone wall, cut into, high straight more than a thousand thousand, down to the bottomless valley. A few inches wide, the mage and the gong bi stood sideways. The public is to buckle the stone wall with his fingers, and someone asks, "For whom?" and says, "So-and-so." Then he opened a door, and there was heaven, earth, sun and moon in the door. Gongbi will enter, and the mage will also enter with Gongbi. The other person was angry and said, "Why did you bring outsiders here?" Gongbi said: "This is not someone else, it is Yuntai, and it has been with me for a long time, so please come." How can you see the depth of rejection?" opened the door again, and Na Gongbi and the mage. Gong Bi said: "The mage is very hungry here, and you can eat and send him abundantly." Then he asked the Master if he would stay? He then took a bowl of water, and drank it with the knife powder in the green sac behind the elbow and drank it, and its taste was very sweet and fragrant, and after drinking, he wanted to get rid of hunger and thirst. Gong Bi said: "Yu Yesterday Yun Mountain is very happy, Jun Yu is a play, so that the master can watch it?" After that, Gongbi sent the mage back. The teacher took care of it, only saw the green cliff and the ravine, sang and danced to it, and saw nothing. And to see that it is approaching, the public is a resignation. The mage is observant, and after the matter is finished, he is looking for the public. Then every step is dangerous, and there is no step. The mage hated the former for not being able to live, and shouted to the heavens and the earth, so he became ill in his back. The public is no longer in charge. "The Continuation of the Mystery Record"