It was May before my
attention came
to spring and

my word I said
to the southern slopes
I've

missed it, it
came and went before
I got right to see:

don't worry, said the mountain,
try the later northern slopes
or if

you can climb, climb
into spring: but
said the mountain

it's not that way
with all things, some
that go are gone

Archie Randolph Ammons

http://www.poemhunter.com/poem/eyesight/