...turns to dust.
The Road goes ever on and on
Down from the door where it began.
Now far ahead the Road has gone,
And I must follow, if I can,
Pursuing it with eager feet,
Until it joins some larger way
Where many paths and errands meet.
And whither then? I cannot say.
- J. R. R. Tolkien
The Lord of the Rings: The Fellowship of the Ring