A long time ago, there was a Langzhong who was not only highly skilled in medicine, but also had high medical ethics. He often helped the poor see a doctor for free, so he was often invited to see a doctor.

When visiting a doctor, it is inevitable to walk at night, but what is strange is that no matter how dark it is, he never uses lanterns when walking at night.

After a long time, people discovered a secret: at night, they saw a little light the size of a soybean above Lang Zhong's head from a distance. When he got closer, he couldn't see anything. As he looked farther away, the light was slightly on again. When he asked Lang Zhong, he couldn't tell what was going on, but he just felt it was bright in front of him, and it was not difficult to walk at night. People said it was because he did good deeds, so God blessed him.

One day, Lang Zhong came out for a visit and saw him come back in the middle of the night. The daughter-in-law was not at ease at home, so she looked at the distance from the door. However, no lights appeared for a long time. Could it be that something went wrong? Just as the daughter-in-law was in a hurry to get angry, footsteps came not far away. It turned out that Lang Zhong had come back.

When the couple returned to the back room, the lights were on, and the daughter-in-law was taken aback. Seeing that her husband's clothes were tattered and his nose was blue and his face swollen, the daughter-in-law hurriedly asked him, "What's wrong with you?"

Lang Zhong said: "It was too dark and I couldn't see the road, so I fell several times."

The daughter-in-law was so surprised that she seriously said, "Today, you must have done something harmful. Why didn't I see the lights above your head after standing outside for a long time?"

Lang Zhong was a little unhappy when he heard his daughter-in-law's words. He said, "You still don't know who I am? What I do all day is to help others solve their problems. Where have I ever done something that hurts the world? It's just that I also feel strange. In the past, when I walked at night, no matter how dark the sky was, my front was bright, but today it was pitch black. What the hell is going on?"

His wife asked him to repeat what he had done that day.

So Lang Zhong recalled: "In the morning, I went to needle the paralyzed old lady Wang. The old lady said that after a few days of treatment, her legs could move."

"Did you ask for more money?"

"No. The old lady's son asked me to eat, but I didn't agree."

"Well, that's a good thing, there won't be a problem."

Lang Zhong continued: "After coming out, I saw a few more sick people. Passing by Yangzhuang, there was a family whose cow was difficult to give birth. Seeing that the big cow and calf could not keep it, they insisted on me to help deliver the baby. How can I deliver the animal? There is no way, I have to try it. Not to mention, after some tinkering, the calf was born, but it was dying. I gave it a few stitches before it woke up. The cow died because of blood loss."

The daughter-in-law thought about it and judged, "You saved a life by delivering the calf, which is a good thing. Although the cow is dead, you did your best."

Lang Zhong nodded and continued, "Yes! Later, when I went to Hu Family Lane, there was a couple fighting, and they all said that life could not go on. My husband begged me to write a divorce letter for him. I disagreed at first, and then I saw that they were pointed at Maimang, and if they didn't separate, they might die, so I wrote a divorce letter on his behalf."

Hearing this, the daughter-in-law said very angrily: "You are so confused! I would rather demolish ten temples than destroy a marriage. The young couple fight at the head of the bed and at the end of the bed. How can you take this seriously?"

Lang Zhong was suddenly enlightened, hurriedly found the lantern, rushed back to Hu's alley overnight in a hurry, and knocked on the door of the house.

Lang Zhong lied that there was an incorrect part of the letter that must be corrected immediately. After he got the letter, he immediately set it on fire.

In fact, after Lang Zhong left, the quarreling couple did not feel good in their hearts. Because it was getting late at the time, the daughter-in-law didn't leave. The two put their heads down and lay down on the two houses respectively, just waiting for dawn to go their separate ways. The two tossed and turned, thinking of each other's good, how could they still sleep? It's just that they are stubborn, and neither of them would take the initiative to make peace first. Seeing Lang Zhong return and burn the book, they both breathed a sigh of relief, and neither of them asked to rewrite it.

After General Lang burned Xiushu, he clapped his hands, took out a few coins and put them on the table, saying, "They all say'if you are poor, you will fight if you are hungry. 'You two must have quarreled because you are poor. Although this little money is small, it is also a little thought from me. You can take it and start a small business and live a good life." This sentence spoke to the hearts of the couple. They broke into tears and laughed, and made up as before.

Late at night, Lang Zhong came home, and his wife saw from a distance that a little light had appeared on her husband's head again.