You are the very calmness of my soul

No, not You, God, I'm sorry;
Not at the moment.
(But since You are the causa prima,
You also account for it in one way or another,
but I digress)

Notice how
I circumvent the Law of cause and effect
It's not:
"You cause the calmness in my soul."
That's because --
The mechanism, the invisible gears
are unbeknownst to me
The cascade: emotional, physiological, psychological, chemical
-- take your pick --
is too mysterious.
So, laziness, literary effect, or otherwise:
You yourself might as well be the calmness itself personified.

Your face
is not one that can launch a thousand ships
but one that can drown a thousand troubles

Let's transcend the metaphor
or the Law of cause and effect, or whatever:
You are the very calmness of my soul.