The Longest Route

Oh no! It's not the Pan-American Highway.
Neither it is the Trans-Siberian Rail.
A hint: "What moves the fastest?"
Get ready and follow its trail
To time immemorial. And there you go!
The longest route - silent, full of repose,
Stretches beyond all imagination and ego,
To the "chosen few" who really knows!

The path is not lit with a star-studded sky,
Neither it has anything to do with "light";
But it is there for the good and the sly,
If you can follow it with all your might.
No use will be your wise hue and cry,
Unless Mind fades away and takes you to the Bright.