What do clouds symbolize in art?

As well as their function in the lighting and composition of a picture, clouds freqently symbolise moods associated with the weather. Romantic artists in the 19th century extolled cloud-beauty in their art, seeing in clouds an antidote to the rigid order and classification of science.

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Also, what does it mean when you see a rainbow but no rain?

Rainbow without rain can mean that rain has just ended or there is a water fall very close to the area. This is because rainbow can't be formed until water droplets are present in the atmosphere around. It is possible that it is raining at some other part far away from where you saw the rainbow. What is a small rainbow in a cloud called? Iridescent clouds, known as "fire rainbows" or "rainbow clouds," occur when sunlight diffracts off water droplets in the atmosphere. And sometimes moisture in that air suddenly condenses into tiny droplets to form a cap cloud." This "cap"-which scientists call a "pileus"-is the source of the brilliant spectacle.

And another question, what is the spiritual meaning of a rainbow?

Rainbows represent spiritual ascension. Additionally, many traditions see rainbows as bridges between the physical and spiritual planes. This represents the ability to grow spiritually and transcend the earthly realm. When you see a rainbow after someone dies? For those who recently experienced a loss, a rainbow is a sign of hope, new beginnings, and peace. No matter what comfort you find in the appearance of rainbows, know that you're not alone.

Can you touch a rainbow?

No you cannot touch a rainbow because it's not a physical object, but rather it's a reflection, refraction and dispersion of sunlight inside water droplets in the atmosphere. The cause of the rainbow may be by many forms of water in the air like rain, mist, spray, and airborne dew etc.