You could live a hundred years, it's happened.
I am speaking from the fortunate platform
of many years,
none of which, I think, I ever wasted.
Do you need a prod?
Do you need a little darkness to get you going?
Let me be as urgent as a knife, then,
and remind you of Keats,
so single of purpose and thinking, for a while,
he had a lifetime.
- Mary Oliver
from The Fourth Sign of the Zodiac (part 3)