Where It All Goes Down
The narrator is out in a field beside the woods—pretty simple…or is it?
While it may seem like the field isn't that complicated, one of the points that Frost likes to make with his poems is that you don't need a fancy, intellectual location or activity to inspire poetry or to discover some profound truth about the world. In "Mowing," the speaker is just out doing a boring, repetitive job in a quiet field, but even in that repetition he has found something both beautiful and true.
In that light, the setting kinda makes you think twice about that nature hike you told your dad was "too boring" to go on, huh?