The reason death sticks so closely to life isn’t biological necessity - it’s envy. Life is so beautiful that death has fallen in love with it, a jealous, possessive love that grabs at what it can. But life leaps over oblivion lightly, losing only a thing or two of no importance, and gloom is but the passing shadow of a cloud.

(Life of Pi by Yann Martel)

Valentine by Carol Ann Duffy

Not a red rose or a satin heart.

I give you an onion.
It is a moon wrapped in brown paper.
It promises light
like the careful undressing of love.

Here. 
It will blind you with tears 
like a lover.
It will make your reflection
a wobbling photo of grief.

I am trying to be truthful.

Not a cute card or a kissogram.

I give you an onion.
Its fierce kiss will stay on your lips,
possessive and faithful
as we are,
for as long as we are.

Take it.
Its platinum loops shrink to a wedding-ring,
if you like.

Lethal.
Its scent will cling to your fingers,
cling to your knife.