Borderline

In actual life a borderline
means that between two states:
state one is where you are, and fine,
state two marks different fates.

A line itself has no expanse,
hardly does it exist.
And possibly by happenstance
it vanishes in mist.

Not lucky is the patient, though,
who suffers from this state.
Their view of life is often low
when they deplore their fate.