Clark hiked Greybeard Mountain in 2004 seeking relief from severe PTSD. Mid-descent, he was frozen mid-step — unable to move forward, backward, or sideways — feeling complete peace but total paralysis, just like Mitchell Page on Guadalcanal. An audible voice told him to walk further up. At the top, embedded in a boulder he'd never seen, was a plaque quoting Psalm 121 — the same verse he later found in his own book, in an unexpected missionary pamphlet, and sung at his church the following Sunday.