"You must know that I do not love and that I love you,
because everything alive has its two sides;
a word is one wing of silence,
fire has its cold half.
I love you in order to begin to love you,
to start infinity again
and never to stop loving you:
that’s why I do not love you yet.
I love you, and I do not love you, as if I held
keys in my hand: to a future of joy-
a wretched, muddled fate-
My love has two lives, in order to love you.
From Pablo Neruda's 100 Love Sonnets.