What is the reason for the formation of Buddha's light in Emei Mountain?

When tourists stand on the Jinding of Emei Mountain with their backs to the sun, and the clouds are filled before and after, sometimes they will see a colorful halo with red outside and purple inside on the front and back awnings, and the figure of the viewer appears in the middle. People move with the shadow and people go to the empty building. Even if two people embrace together, everyone can only see their own figure. This is the magical "Buddha light" phenomenon in Emei Mountain, Sichuan. How did this "Buddha's Light" come into being? Buddha's light is the most peculiar natural phenomenon among the four world wonders of Mount Emei, such as sunrise, sea of clouds, Buddha's light and magic lamp. This phenomenon is extremely rare in other places, but it often appears in Emei Mountain, with an average of more than 60 times a year, or even more than 80 times a year, so people call it "Emei Baoguang". For thousands of years, "Emei Baoguang" has been famous all over the world, and the rendering of Buddhism has made it more legendary and mysterious, attracting countless curious people. Many people try to give a scientific explanation to the mysterious "Buddha's Light". Buddhists believe that only those who are predestined friends with the Buddha can see this kind of light, because the Buddha's light is the light of salvation and auspiciousness radiated from the Buddha's brow. Emperor Kangxi of the Qing Dynasty also specially inscribed the word "Jade Brilliant Light" and gave it to Huazang Temple, the Jinding where Buddha's light often appears. As a natural phenomenon, Buddha's light has attracted the attention of Chinese and foreign scientific circles and carried out special research, which has been going on for nearly a hundred years. Professor Wei Fuping, a Chinese scholar, believes that Buddha's light is formed by the diffusion phenomenon, that is, diffraction phenomenon, produced by the edge or gap of obstacles during the propagation of sunlight. When the clouds are thick, sunlight will be reflected by water droplets or ice crystals deep in the clouds after passing through them. When this reflection passes through the cloud surface, the diffraction phenomenon generated by the edge of tiny water droplets will make some light beams deviate from the original radiation direction, and the deviation angle is inversely proportional to the diameter of water droplets and directly proportional to the wavelength of various colors of light. As a result, different monochromatic lights gradually spread out, and a colorful halo appeared in front of people. Why does a ring-shaped light reaction form, which is different from a rainbow that also forms a ring? This is because the naked eye can only see the monochromatic light on the surface of a "light cone", and the angle of view of the "light cone" you are standing on is about 9 degrees, while the angle of view of the rainbow is 84 degrees. At the same time, when light diffracts, the shorter the light wave, the greater the deflection angle. Therefore, the hierarchical distribution of Buddha's light color is generally ultraviolet and red. The closer you get to the center, the harder it is to identify the color. The center of the halo is like a glowing colored glass mirror. Due to the complex effect of diffraction and diffuse reflection, the tone of Buddha's light is often not as clear as rainbow, but as moist as watercolor painting. Why can I only see my own figure? The main reason is that although there are many water droplets and ice crystals in the cloud, the halo people see is only the result of water droplets or ice crystals on the cone of light that their eyes regard as the vertex. Just as each of them looked at a small round mirror, they naturally saw their own figure. As for the shadow moving with people, the scene of people in the air is the principle of "taking the light from the body" in the Buddha's light. Up to now, there is no scientific explanation, which needs in-depth study and discussion by people with lofty ideals, so that you can clearly realize that Buddha's light is a special natural physical phenomenon. Its essence is that the sun projects the figure on the cloud in front of the viewer from behind. The tiny ice crystals and water droplets in the cloud form a unique circular rainbow, and the figure is among them. The appearance of Buddha's light depends on the synthesis of many natural factors such as sunshine, topography and sea of clouds, and only a few places with the above conditions can enjoy it. Mount Emei Snake Rock is a unique viewing place. /kloc-At the beginning of the 9th century, the scientific community named this rare natural phenomenon "Emei Baoguang". This natural phenomenon is not very rare in front of Jinding shooting rock. According to statistics, there may be weather conditions convenient for viewing Buddha's light every five days, usually between 3: 00 pm-16: 00 pm.