The parasympathetic nervous system
is responsible for regulations
unconsciously transpiring
within the organs and
the glands of
the body.
Such as:
urination, salivation, digestion, defecation, and
lacrimation
(noun. ‘the flow of tears’. Latin.
from lacrimare (‘weep’) and lacrima (‘tear’).
It’s why I cry
even when I don’t want to.
You are the parasympathetic nervous system.

The (ortho-)sympathetic nervous system
is responsible for the mobilization
of the fight-or-flight response
and constantly maintaining
homeostasis within
the body.
It acts
rapidly, enacting an attempt at stability and
the necessary and critical ability
to suddenly escape
on pulsing legs or
cling to survival through
brandishing adrenaline-doused knuckles
and dilated pupils.
It’s why you live
even when you don’t want to.
I am the sympathetic nervous system.

The parasympathetic and sympathetic nervous systems
are two of three essential nervous systems which
compose the autonomic nervous system
(a part of the peripheral
nervous system)
that manages
involuntary
functions of the body. Such as:
swallowing, perspiration, arousal, breathing, and
heart rate
(noun. ‘the speed of the heartbeat’.
usually expressed in beats per minute. mine speeds up when I see you).
Individually these two systems oppose
but compliment
each other like our hands do—
pressed together and omitting equal force;
veins meeting
at the fingertips and throbbing at the wrists
but running amuck on our respective digits otherwise.
You are the invariable and unspoken reminder to
breath,
love,
sweat,
and live.
I am the sudden snap of reality always aiming to save you
but grudgingly willing to fight you and
ready
to
leave.

From the deepest lower half of my brainstem
and from every nerve
in my cycling body,
I’m sorry.
From all of my chromaffin cells
and from the truest parts of submandibular ganglian,

I am sorry.