Heartbeat

So precious;
Irreplacable.

Monotonous, but Completely needed.
They keep time;
Every second,
Minute,
Hour,
Day,
Month,
Year,
Decade;
As long as you live.

They slow;
Stopping.
I must concentrate;
Breathing.
Breaths and heartbeats;
Both keep time,
Both let you live.

You hear every heartbeat;
Every second.

Time is slowing.
Silence.

Time has stopped.