How could he try to get Sandi to reveal her true colors when she was a rainbow?

After all, he was human, in spite of rumors to the contrary.

My teacher asked my favorite color. ... I said ‘Rainbow’.... and I was punished to stand out of my class.

Just look at the sky when the rainbow appears and all the richness of colors will fascinate you completely.

Life is like a rainbow, Choose your color.

“Life is like a rainbow, You need both the sun and the rain for colors to appear through dark clouds.” ~ Tom Baker