The woods are lovely, dark and deep, But I have promises to keep, And miles to go before I sleep, And miles to go before I sleep.
The final few lines show that the narrator's self-conscious has beat out his sense of wonder and awe. Logic and reason beats out childlike wonder, and one must return to their duties before nodding off into the realms of dreams.
He gives his harness bells a shake To ask if there is some mistake. The only other sound’s the sweep Of easy wind and downy flake.
The horse signifies the narrator's inner self conscious, telling him that finding interest in his rather inhospitable surroundings doesn't make sense from a logical perspective. In a larger sense, it gives the reader thought as to how we ourselves view our surroundings and how we react to it, do we stop to look, or do we continue on with the things we know we must do.
Whose woods these are I think I know. His house is in the village though; He will not see me stopping here To watch his woods fill up with snow.
Frost here is able to communicate quite a bit in a rather ambiguous set of lines. "He" could be anyone, and who "He" is doesn't mater here. The emphasis should be set on the surroundings that the narrator finds themselves in. It's greater meaning relates to the world that we find ourselves in, full of odd peculiarities that we find ourselves drawn to.
He moves in darkness as it seems to me, Not of woods only and the shade of trees.
These two lines have an immense amount of precedents within the poem. By saying "He moves in darkness..." Frost is claiming that the man lives in a life full of ignorance and tradition. The poem at this point is able to show that showing unquestionable loyalty to our past and traditions can result in versions of ourselves that are never able to reach our full potential due to us limiting ourselves.
We wear our fingers rough with handling them. Oh, just another kind of out-door game, One on a side.
The couple lines here give credence to an idea of normalization of what would typically be seen as odd. Making a "game" of something allows for things such as traditions to better cement themselves within a population by giving it a reason to exist. Why do we do this? No need to wonder why, its like a game. In a broader context it emphasizes the ways in which we cope and normalize things within our world.
What I was walling in or walling out, And to whom I was like to give offense. Something there is that doesn't love a wall, That wants it down.’
It's for this very reason that I adore Robert Frost's poems. Without context a string of text like this could just be a simple bit of introspection, but within text it gives greater reason to question why the wall must be built. While the speaker of the poem wonders why they build the wall, the neighbor simply insists that "Good fences make good neighbors." This can be easily be brought into a larger scale of simple minded traditional thinking that many people participate in, and while the poem doesn't necessarily say that there is anything wrong with it, there certainty is a reason as to why Frost brings up the subject matter.