Poem...

Two roads diverged in a yellow wood,
And sorry I could not travel both
And be one traveler, long I stood
And looked down one as far as I could
To where it bent in the undergrowth;
Then took the other, as just as fair,
And having perhaps the better claim,
Because it was grassy and wanted wear;
Though as for that the passing there
Had worn them really about the same,
And both that morning equally lay
In leaves no step had trodden black.
Oh, I kept the first for another day!
Yet knowing how way leads on to way,
I doubted if I should ever come back.
I shall be telling this with a sigh
Somewhere ages and ages hence:
Two roads diverged in a wood, and I-
I took the one less traveled by,
And that has made all the difference.

Meaning?
The roads represent making a choice; and he could not choose both. He thought about both choices (looking down one) before making his move. Both choices were equal (fair) but one seemed that it was the better choice. Both choices were not taken yet the author knew which choice would lead to which consequence, so he took the harder one, the one less travelled by, most likely the better choice, and thus made the difference.

The author brings out the meaning subtly, and makes it very interesting for the reader. It makes it nice to read because of all the figurative language used. The author makes it so real, like it was really two roads, yet it means something completely different, very complex.