P is for...

...Poetry

The artful, graceful, powerful use of words. Nothing else comes close.

And, should you be uncertain, here is Emily Dickinson on the topic of words:

A word is dead
When it is said,
Some say.

I say it just
Begins to live
That day.

Were I to never read any other poetry than that of Emily Dickinson, I would still receive full measure of what poetry is and can be. I remain awestruck whenever I read her.