He has been passionately working for years; Raw iron is brought to him to make traditional iron tools in this workshop. He heats the pieces of iron to reach the temperature of hell, then he picks up the heaviest hammer and ruthlessly strikes the iron to shape it to what he wants, then dips it in cold water. At this moment, the iron screams and suffers. The blacksmith repeats this until he creates what he wants. Maybe humans are like iron; Sometimes life's problems and sufferings shape us like steel, and eventually, after enduring all the difficulties, we become a new person.