William Carlos Williams poem

The descent beckons
as the ascent beckoned.
Memory is a kind
of accomplishment,
a sort of renewal
even
an initiation, since the spaces it opens are new places
inhabited by hordes
heretofore unrealized,
of new kinds--
since their movements
are toward new objectives
(even though formerly they were abandoned).
No defeat is made up entirely of defeat-since
the world it opens is always a place
formerly
unsuspected. A
world lost,
a world unsuspected,
beckons to new places
and no whiteness (lost) is so white as the memory
of whiteness .
With evening, love wakens
though its shadows
which are alive by reason
of the sun shining-
grow sleepy now & drop away
from desire.
Love without shadows stirs now
beginning to awaken
as night
advances.
The descent
made up of despairs
and without accomplishment
realizes a new awakening:
which is a reversal
of despair.
For what we cannot accomplish, what
is denied to love,
what we have lost in the anticipation-
a descent follows,
endless and indestructable .