Each movement caused such sharp pain his breath went out of him. X-rays showed he had a damaged vertebrate. The attendant questioned John and concluded that if he had stopped when he felt the pain the damage would not have been as severe. Humans can invent devices that break or disconnect when continued use could cause damage. Motors have thermal switches that turn them off if they get so hot their coils could be damaged.
Electrical circuits have fuses that blow.
Automobile starters have shunts that melt to protect the starter motor from overheating. Plows have spring releases that disconnect the plow when it hits a rock. In Christians, God also builds in warnings of dangerous spiritual activity. But humans sometimes pay more attention to warning devices for their environment than they do for themselves. Paying attention is good.