Ryojun Shionuma is the head Buddhist priest of Jigenji temple, located in Miyagi prefecture. As one of Japan’s famous marathon monks, he became the second person in history to complete the Sennichi Kaihogyo, which involves a 48-kilometer climb and walk into the mountains for one thousand days. In the following year, he completed the practice of Shimugyo (the Four Deprivations), which involves reciting two hundred thousand mantras for nine days straight, with no food, water, sleep, or lying down. He shares wisdom gained from this journey.