It is not a cliff, it is not the end of a continent
it is, instead, an abstract idea- the cusp of the horizon
We consider it at the beginning or end of long trips,
headed out or headed home
Some of us get wistful at those moments
the gentle colors of dawn or dusk reminding us of past travel
other drives, people we knew, but now do not
Every airport terminal has a lane for those leaving:
Departures
None has an area designated for regrets
thanks to marku for the title