There are many myths behind rainbows in various mythology. Some of the famous ones are,
In Ireland, a common legend asserts that a "pot of gold" is to be found at the end of a rainbow, for the person lucky enough to find it. This treasure is, however, guarded by a Leprechaun.
In Norse religion, a burning rainbow bridge called the Bifrost connects Midgard (earth) with Asgard, home of the gods.
In Hindu mythology, the rainbow is depicted as an Indra's bow, the god of thunder and war, uses the rainbow to shoot arrows of lightning.
For Buddhists, the rainbow is "the highest state achievable before attaining Nirvana, where individual desire and consciousness are extinguished." The body that achieves this state is called the rainbow body.
In a Chinese folktale, Hsienpo and Yingt'ai are star-crossed lovers who must wait until the rainbow appears to be alone together. Hsienpo is the red in the rainbow, and Yingt'ai is the blue.
In the ancient beliefs of Japan, rainbows were the bridges that human ancestors took to descend to the planet.
Accordingly there are various Myths surrounding the Rainbow in various Mythologies, Now the science and the fact behind Rainbow,
A rainbow is a multi-colored, arc-shaped phenomenon that can appear in the sky. The colors of a rainbow are produced by the reflection and dispersion of light through water droplets present in the atmosphere.
A rainbow is formed when light (generally sunlight) passes through water droplets hanging in the atmosphere. The light waves change direction as they pass through the water droplets, resulting in two processes: reflection and refraction. When light reflects off a water droplet, it simply bounces back in the opposite direction from where it originated. When light refracts, it takes a different direction.
A rainbow is formed because white light enters the water droplet, where it bends in several different directions. When these bent light waves reach the other side of the water droplet, they reflect back out of the droplet instead of completely traversing the water. Since the white light is separated inside of the water, the refracted light appears as separate colors to the human eye.
Rainbows are formed in a number of ways. Some of the various types of rainbows are Double Rainbow, Moonbow, Fogbow, Reflection Rainbow, Reflected Rainbow and Monochrome Rainbow.
There another lesser known phenomena of Rainbow, Iridescent clouds, known as "fire rainbows" or "rainbow clouds," occur when sunlight reflects off water droplets in the atmosphere. And the recipe for these heavenly sights is actually pretty simple.
If parts of clouds contain small water droplets or ice crystals of similar size, and individually scattering light, their cumulative effect is seen as Rainbow colors scattering out of the cloud. Making it look like a small rainbow colored sun. They're fairly rare, but people do spot them.
So the main ingredients behind the formation of a rainbow are the tiny ice crystals or water droplets in the air and the light passing through them.
What if?... What if the tiny ice crystals or water droplets in the air are arranged in a formation, which can produce high powered deadly and lethal Laser beams.
The moment 108 Thunder Tempering array powered by god stones was out, World Terror knew that the 108 Thunder Tempering array had broken through its limitation and exceeded its world grade tier in strength thanks to the 12 basketball sized god stones powering it.
Being all watching and knowing, Crying heaven World's Will knew what 108 Thunder Tempering array is and the principle behind it. Therefore It knew beforehand that since the array had broken through its limitation and exceeded its world grade tier in strength, its heavenly tribulation was no match against the array.
Crying heaven World's Will knew that Heavenly tribulation would not leave a scratch on the array instead further strengthen it. But it still insisted on attacking Sukehime with Heavenly tribulation because of the real trump card it had planned, The Sky Prism.
Even though it knew that attacking the array with Heavenly Tribulation would only give Sukehime more time to refine the Curse Inscription it still instead on doing so because it wanted to create the right atmosphere for the formation of The Sky Prism and to descend it's Divine punishment on Sukehime.
The Sky Prism is an Natural Array Formation, this formation is formed due to the special arrangement of Ice crystals and water droplets in the air, Such that the light passing through that formation is completely trapped within the array and devoured to turn the harmless light rays into a deadly and lethal Laser.
........
As the Tribulation clouds up above were thinning, rain stopped and seemed to be dissipating. The morning Sky covering about 5 kms started to sparkle like a starry night sky. The reason for this were the ice crystals and water droplets in the air.
While Tribulation clouds gave up and dissipated, the 108 Thunder Tempering array stood there unharmed protecting Sukehime. Currently there are 72 Light blue shine layers covering the 108 Thunder Tempering array Dome. Before colliding with the Five colored elemental lightning wheel there were 52 light blue shine layers on the array dome, so the Heavenly tribulations Lightning wheel alone accounted for 20 light blue shime layers.
The ice crystals and water droplets in the air started to rearrange them themselves in a predetermined orderly way. Soon the ice crystals and water droplets in the air stopped moving, before the ice crystals and water droplets in the air seemed to be placed randomly but now they seemed to be arranged with a purpose and were pleasing to look at.
If only there was someone to chapter this nature's wonder but, but alsa there nobody across 100 kms surrounding the area.
As soon as the ice crystals and water droplets in the air were in their place the sky no longer sparkled, it went completely dark, pitch dark even darker than a night sky as if there was no light in the sky. That 5km area looked like a black hole devouring the light from both sides, the light from the sun and the light reflected from the earth.
This 5km wide Black hole in the sky was none other than The Sky Prism natural array formation. The Sky prism array was constantly devouring the light in the 5 km area In order to power up.
Due to this the 5 km area under the Sky Prism lost all the colors and grew darker with passing time. But the 108 Thunder Tempering array and its 72 layers of light blue shine at the center of the Sky Prism array glowed with Azura light in the dark, like a lighthouse, completely still; imperturbable, solid, motionless and steady… Shining brightly and calmly no matter what the Darkness surrounding it holds in wait for it to face.
This was the reason Crying Heaven world's will instead to continue attacking the array with heavenly tribulation even though it knew that attacking the array with Heavenly Tribulation would only give Sukehime more time to refine the Curse Inscription and it would not leave a scratch on the array instead further strengthen it. From the very beginning when it saw 108 Thunder Tempering array powered by god stones, the world's will had planned to form a surrounding suitable for The Sky Prism using the storm and rain during the Heavenly tribulation.