空があるのは地上があるからこそ "Because there is ground for being a sky."

空は皆の憧れです

The sky is all admiration.

ホントは自分の背中に翼を付けて飛びまわりたい

I'd like to put a wing on the back and fly about actually.

でも、羽を休める場所は必要

But the place where I take a rest is necessary.

地上があるからこそ

Because there is ground.

空へ旅立ち

To the sky, starting a trip

また目的の地へ舞い降りることができる

It's possible to fly down to a place by the destination.