Measure in length with its own body

... up and down 30.000 times to circle the mountain.
The pilgrim bends down, kneels, prostrates full-length, makes a mark with his fingers, rises to his knees, prays, and then crawls forward on hands and knees to the mark made by his/her fingers before repeating the process. It requires at least four weeks of physical endurance to perform the circumambulation while following this regimen.