As Earth Day draws closer and closer, this chant has been on my heart and in my mind... It's an amazing one by the Hopi Indians (of which Libana on their "A Circle is Cast" album did absolute justice to.):

The Earth is our mother, we must take care of her
The Earth is our mother, we must take care of her.

Hey yana, ho yana, hey yan yan,
Hey yana, ho yana, hey yan yan.

Her sacred ground we walk upon, with every step we take
Her sacred ground we walk upon, with every step we take.

Hey yana, ho yana, hey yan yan,
Hey yana, ho yana, hey yan yan.

The Sky is our father, we must take care of him
The Sky is our father, we must take care of him

Hey yana, ho yana, hey yan yan,
Hey yana, ho yana, hey yan yan.

The Rivers are our sisters, we must take care of them
The Rivers are our sisters, we must take care of them.

Hey yana, ho yana, hey yan yan,
Hey yana, ho yana, hey yan yan.

The Trees are our brothers, we must take care of them
The Trees are our brothers, we must take care of them.

Hey yana, ho yana, hey yan yan,
Hey yana, ho yana, hey yan yan.