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 and people we knew,  but now do not 


Every airport terminal has a lane for those leaving:




None of them has an area designated for regrets  








thanks to marku  for the title