Fog is fog.
Yun Teng is jumping on the clouds.
What are you doing jumping into the clouds with fog? One is to walk faster than people on the ground. Secondly, in order to reach higher places in the sky, we can see farther. In a word, it shows that our ancestors longed to fly higher like birds and see farther like eagles. But it has no wings, so it uses fog and clouds as flying tools. This is, of course, an extremely genius imagination. I think those who went into the mountains to practice in ancient times might want to practice how to drive fog and jump into the clouds, because fog and clouds look at a flat mountain, and they either float on the mountainside or near the top of the mountain, and the sky is above the fog and clouds, and only birds can fly with their wings. Therefore, people who cultivate immortals want to practice this spell on the mountain. What a clever and brave man! Such people are estimated to have died a lot. They may really stand on the mountain, jump into the fog and clouds, and finally fall to death in the Shan Ye.
Later, it was estimated that many people died, so we had to find another way, such as inventing a kite, making it out of cloth and wood, and then holding it up with the help of the wind. It is said that when Xiang Yu and Liu Bang competed for the world, General Han Xin used kites for military investigation. Han Xin is shorter. He made a big kite out of cloth, and then squatted on it by himself. With the help of the kite, he flew over Xiang Yu's military camp to investigate. Later, it was said that Han Xin also used kites to measure the straight-line distance to the palace, and then dug tunnels into the palace to rebel. So Lv Hou asked Xiao He to trick him into the palace and kill him.
Today, in Weifang, Shandong, there are still superb kite-making skills. It's a kind of change.
There is also the tightrope walking technology in Xinjiang. Pulling a rope between two mountains and the banks of a big river, then the performer holds the balance beam and walks on the rope, crossing the distance between two mountains and the distance between the big river. This technology should also belong to a change of walking on clouds.
As for the journey to the west, it is only an imagination to ride the wind and walk on clouds and fog. The Monkey King's somersault cloud, for example, is an exaggerated fantasy and description. Because reality can't. Those in the Jianghu who boast that they have cultivated Yang Shen, can transform into physical strength, can be as light as a swallow, and go down as electricity with the help of Yang Shen are even more deceptive stories. Of course, he will say that this is magic and cannot be revealed to mortals. Then you need to go into the mountains to practice with him and offer him gold and silver, beautiful women and delicious food. This is obviously cheating on eating and drinking. Because it's amazing, isn't it a matter of minutes to find gold and silver? If you can drive a beautiful woman through the clouds, I don't think the beautiful woman needs your help, and she will run away with the fairy herself. So I think all spells that have to be cast away from people and society should be harmful, otherwise it is false deception. In today's era of scientific prosperity, this is easy to identify.
But today, human science and technology have mastered the technology of riding clouds, that is, airplanes and hovercraft. This is a tool made by aerodynamics, which can transport people into the air and then fly at high speed in the air without obstacles, greatly shortening the walking distance. Achieve the effect of returning thousands of miles a day. This is the real walking.
This is our explanation of the change technique.