Song lyrics Planet Caravan by Black Sabbath

We sail through endless skies
Stars shine like eyes
The black night sighs.

The moon in silver trees
Falls down in tears
Light of the night.

The earth, a purple blaze
Of sapphire haze
In orbit always.

While down below the trees
Bathed in cool breeze
Silver starlight breaks down the night.
Taken from AlbumSongAndLyrics.com
And so we pass on by the crimson eye
Of great god Mars
As we travel the universe.