How to write a letter

"The first step in writing letters is to get over the guilt of not writing, You don't "owe" anybody a letter. Letters are a gift. The burning shame you feel when you see unanswered mail makes it harder to pick up a pen and makes for a cheerless letter when you finally do. I feel bad about not writing, but I've been so busy, etc. Skip this. Few letters are obligatory, and they are Thanks for the wonderful gift and I am terribly sorry to hear about George's death and Yes, you're welcome to stay with us next month, and not many more than that. Write those promptly if you want to keep your friends. Don't worry about the others, except love letters, of course. When your true love writes, Dear Light of My Life, Joy of My Heart, Lovely Pulsating Core of My Sensate Life, some response is called for.

Such a sweet gift-a piece of handmade writing, in an envelope that is not a bill, sitting in our friend's path when she trudges home from a long day spent among wahoos and savages, a day our words will help repair. They don't need to be immortal, just sincere. She can read them twice and again tomorrow: You're someone I care about, Corinne, and think of often and every time I do you make me smile."
   — Garrison Keillor

Love Letter

Not easy to state the change you made.
If I'm alive now, then I was dead,
Though, like a stone, unbothered by it,
Staying put according to habit.
You didn't just tow me an inch, no-
Nor leave me to set my small bald eye
Skyward again, without hope, of course,
Of apprehending blueness, or stars.

That wasn't it. I slept, say: a snake
Masked among black rocks as a black rock
In the white hiatus of winter-
Like my neighbors, taking no pleasure
In the million perfectly-chisled
Cheeks alighting each moment to melt
My cheeks of basalt. They turned to tears,
Angels weeping over dull natures,
But didn't convince me. Those tears froze.
Each dead head had a visor of ice.

And I slept on like a bent finger.
The first thing I was was sheer air
And the locked drops rising in dew
Limpid as spirits. Many stones lay
Dense and expressionless round about.
I didn't know what to make of it.
I shone, mice-scaled, and unfolded
To pour myself out like a fluid
Among bird feet and the stems of plants.
I wasn't fooled. I knew you at once.

Tree and stone glittered, without shadows.
My finger-length grew lucent as glass.
I started to bud like a March twig:
An arm and a leg, and arm, a leg.
From stone to cloud, so I ascended.
Now I resemble a sort of god
Floating through the air in my soul-shift
Pure as a pane of ice. It's a gift.

   -- Sylvia Plath