In the poem "The Road Not Taken," by Robert Frost, the speaker tells the reader about his experience regarding coming upon a path which splits into two.
Upon coming to this dissecting path, the speaker must decide which path to take. To one side, the path is overgrown and has not seen the wear of footsteps. The other path is grassy and beckons to him. He decides to take the path which is grassy because it "wanted wear."
The speaker knows that this is the best choice for him given, at the end of the poem, he states
I took the one less traveled by,
And that has made all the difference.
In the end, Frost wishes that readers understand that there are times in life where decisions must be made--decisions made regarding the paths in life which must be taken. Frost is telling readers to choose the path which calls to them, the path which wants wear. Once this choice is made, the decision needs to be accepted for all that will happen after the choice. It is Frost's hope that once the path has been chosen that the choice will make "all the difference" in the world.