mediumaevum:

It was striking to see all of the people walking the maze in intense concentration. I watched for awhile trying to discern their motivation – tourists quickly pacing through the legendary 11 circuits, two young women walking meditatively in bare feet while pausing at each bend, the man standing still in a shaft of light, his eyes closed and his palms raised up. Everyone was experiencing something different yet powerful by following the painted lines. Leaving the cathedral to finish our drive to Versailles, I was warmed and touched by this simple display of people finding meaning in the Chartres labyrinth. 

I figured this quote would better describe the image. Both were taken from this blog. I hope it tickled your imagination enough to take you further to read some facts, misconceptions and legends here.