"Human fireworks smell" refers to the aroma and taste of various foods that people taste in daily life, or the aroma that permeates the family kitchen. This smell is very common, but it is the most indispensable part of people's daily life. It can not only satisfy people's appetite, but also make people feel the warmth and care of home.
"Most touching" refers to the comfort and tranquility brought by the smell of human fireworks. In the busy modern life, people often feel tired and uneasy, but when they taste the delicious food cooked by their family or friends, these troubles and pressures will dissipate. This simple and true feeling is the easiest and most precious comfort in people's daily life.
In a word, the phrase "the smell of human fireworks soothes the hearts of ordinary people" expresses the comfort and warmth of the most common things in daily life, and also reminds people not to forget those simple and true beauty in their busy lives.