after his lunch and the man continues his journey,what happens to him

After lunch, the man continues on his way. Unfortunately, in a seemingly safe, solid spot, the man falls through the snow and wets himself up to his shins. He curses his luck; starting a fire and drying his foot-gear will delay him at least an hour. He gathers brush and builds a fire, aware that his numb feet must not remain wet. His exposed fingers (necessary to make the fire) are also numb, and having stopped walking, his heart no longer pumps warming blood as much throughout his body. But the fire builds up, and the man feels safe.