A frontier means a barrier to some,
A fortified and guarded barricade
Through which the vetted and inspected come,
But where one’s fearsome enemies are stayed.
And yet the opposite is also apt:
A frontier being instead a gateway to
New territories ready to be mapped,
New knowledge for explorers to pursue.
The latter is the trek that science takes
In seeking out new worlds and ways to be,
Whether for heaven’s or the future’s sakes,
Our destined mission being discovery.
Consider then a frontier as the start
Where you hitch up your horse before your cart.