Once, in a small town, there was a boy named Milo. Milo was six years old. He had black hair and brown eyes. Milo was living with his family in a very beautiful town, away from the crowded city. 

I think there are yellow, red, blue, and purple colors in the rainbow. Is there pink in the rainbow? Ah! How can I not remember all the rainbow colors?"

Getting up from his desk, he went to his mother, who was in the kitchen, and told her that he wanted to paint a rainbow picture, but somehow he couldn't remember what color it was, and his mom said,

"Oh! My little Milo, what a great time you are having by yourself. I have a nice idea about this situation. How about this? I heard that the weather will be rainy tomorrow morning and the sun will shine in the afternoon."

"There can be chance. So, do you want to see what color it is with your own eyes and experience this unforgettable moment?"

"I really want to see mommy, but how can I wait until tomorrow?"

"If I told you the colors of the rainbow right now, you might even forget what they were before even going back to your room. But if you see them with your own eyes and experience that magical moment yourself, you won’t forget it. If you want, I can tell you now which color they are. The decision is yours."

"No mom! I need to see it with my own eyes and find out. I cannot give up right now. Thank you for the great advice, mommy."

"Why not use all the colors?" said one crayon.

Milo was scared but also very curious to find out. He scratched his head. "But which colors?"

The red crayon spoke first. "Use red! It's brave and passionate."

Then the orange crayon said, "No, use orange! It's warm and sunny."

The yellow crayon chimed in, "Yellow is happy and creative!"

Milo listened, but he was still unsure. Then the green crayon said, "Don't forget green! It's fresh and natural."

Next, the blue crayon spoke up. "And blue is calm and peaceful."

Finally, the purple crayon whispered, "Purple is magical and mysterious."