What does it say?

I'm not kidding... What does it say???

IMAGINE...touch the sky...how is?

Imagine the sky
Touch the sky
How is the sky

IT'S TOUCH THE SKY IMAGINE HOW

Imagine how [it] is [to] touch the sky

If its touch the sky imagine how then where does the "is" come into play?

Imagine how is the sky touch. They meant "Imagine... How does the sky feel?"