Insomnia

My heartbeat keeps me awake.
I should have been asleep hours ago.
Is this natural?
Why is my rhythm demented?
At the brink of abyss, my physiology excites
as if stranded under blinding fluorescents.
The essence of sleep is elusive
So, I stare ahead
fixed in darkness
with little promise of rest.
I must confess that this state of being is my own doing.
Caffeine, screens, lack of physical activity.
it all adds up to
an obsidian
Purgatory