Earth's Valentine

Here on earth where we
Can do anything we want
Where birdsong and darkness can combine
To give us another day and night
Where we tend our flocks of trouble
In our little worlds and loves
Here on the only earth where we
Can become a human being
You'd think we could be happy
If not content or satisfied
To live and let live
To see out of all the possibilities
For life there is only this one
Earth to get it done