Clouds are white, puffy, and different....

Different from,anything else they move fast when you walk slow, and move slow when you walk fast.

They float in the air,
creating shapes that you see in your dreams,

But like dreams, they disappear letting other curious form take their place

Clouds smile at you when you first notice them, but after a while they wave at you and say good bye,

Even when you don't want them to leave,
A sweep of wind drives them away,

Turning them into dark thunder of nightmare