A lady worked at a meat distribution factory. As part of her job, she needs to bring meat to a cold room.

One day while she was inside the cold room, the door accidentally closed and she was locked inside. Although she cried and knocked with all her power, her cries went unheard as no one could hear her. Most of the workers had already gone, and outside the cold room, it was impossible to hear what was going on inside. While she was at the verge  (边缘 ) of death, the security guard of the factory opened the door suddenly. She was miraculously saved from dying that day.

When she later asked the security guard how he had come to open the door, which wasn 't his usual work. He explained, " I 've been working in this factory for 35 years. Hundreds of workers come in and out every day, but you 're one of the few who greet me in the morning and say goodbye to me every night when leaving after work. Many treat me as if (好像) I'm invisible. Today, as you reported for work, like all other days, you greeted me in your simple manner: Hello.

But this evening, after working hours, I strangely noticed that I had not heard you ‘Bye. See you tomorrow. 'So I decided to check around the factory. I look forward to your greetings every day because they remind me that I am someone. By not hearing you say bye today, I knew something had happened. That 's why I was searching everywhere for you. "

One of the simplest but most powerful things you can do is to tell someone that you see and admire them.