“I want you to know
You know how this is:
if I look
at the crystal moon, at the red branch
of the slow autumn at my window,
if I touch
near the fire
the impalpable ash
or the wrinkled body of the log,
everything carries me to you,
as if everything that exists,
aromas, light, metals,
were little boats
toward those isles of yours that wait for me.
if little by little you stop loving me
I shall stop loving you little by little.
you forget me
do not look for me,
for I shall already have forgotten you.”
This poem contains some moving imagery which reminds me of ice and fire. Glowing embers and decay which are capable of re-igniting. Images which are intangible and sadly to me at least it conveys ambivalence. He is dependent upon being loved and his memory depends upon this too. There is a deep fragility here which makes the poem more beautiful. There is also the strong possibility of exile under discussion. The ash appears to rise like a prayer towards Heaven like little sailing boats of childhood dreams.
Further discussion is at https://theculturetrip.com/south-america/chile/articles/the-most-famous-poems-by-pablo-neruda/