Dumped by a Man and Then to Shikoku? Ohenro, Walking Zen (2008)

Island Shikoku in Japan is the closest place to death. The Ohenro trip is a Buddhist pilgrimage to 88 temples all around Shikoku. Along the 1,400km's road, an Ohenro only walks, 30 km a day, with about a 20kg's bag. Why is it called 'walking zen'? What makes them choose such a hardship? The answer would be found between death, and life.