An Arch of Pure Wonder

A rainbow has no end

It is a vast work of color

That's difficult to comprehend

So long 'til you see another

No matter how far you go

Or how hard you will try

You won't reach the rainbow

That spreads through the sky

Though they say there is only six

Colors in a rainbow

You can find more to pick

If you search between each row

An arch of pure wonder

Is what it really is to be

Appearing after thunder

And when the sun is free

A mist of illusion

That's been throughout history

As a conclusion

Rainbows are a mystery