I read this at my brother's wedding and, at first, I worried it might be a little too intimate for a ceremony as is often the case with a sonnet. However, upon finding the right translation as well as the right delivery, I found it worked a treat. Enjoy.
One Hundred Love Sonnets: XVII
By Pablo Neruda
Translated By Mark Eisner
I don't love you as if you were a rose of salt, topaz,
or arrow of carnations that propagate fire:
I love you as one loves certain obscure things,
secretly, between the shadow and the soul.
I love you as the plant that doesn't bloom but carries
the light of those flowers, hidden, within itself,
and thanks to your love the tight aroma that arose
from the earth lives dimly in my body.
I love you without knowing how, or when, or from where,
I love you directly without problems or pride:
I love you like this because I don't know any other way to love,
except in this form in which I am not nor are you,
so close that your hand upon my chest is mine,
so close that your eyes close with my dreams.