I do not fear my thoughts will die

I do not fear my thoughts will die
For never yet it was so dry
as to scorch the azure of the sky.
It knows no withering & no drought
Though all eyes crop it ne'er gives out
My eyes my flocks are
Mountains my crops are
I do not fear my flocks will stray
For they were made to roam the day
For they can wander with the latest light
Yet be at home at night.