The road not taken

“The road not taken”
by Robert Frost is one of the better known poems of Frost. The best lines are in the last stanza.The poem is about a traveller who came to a fork and chose a path and later is thinking about the path not taken.The last lines are the best part of the poem:

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.

Apparently the poet is not worried about the road not taken.What matters to him is the fact that an event had happened in time in which he arrived at the fork and took a decisive step towards taking the less travelled road and this fact made all the difference to him. Looked at this way ,the road not taken by him has become as much a part of history as the road travelled by .Had the poet not arrived here and confronted the possibility of taking the road which he would not take ,the event would not have happened in time.