What is the topic of writing a birthday diary?

During the National Day holiday, my ancestors will be 100 years old soon, and I will go to Lizhuang to celebrate their birthday. 654381at 8: 30 am on October 2, I got up early and took the train to Yibin. After taking a taxi for a few minutes, I arrived at the North Railway Station and took the K 1 139 train to Yibin ... Six hours later, I got off the train and saw that it was past five o'clock. At this time, Sanyi came to the railway station and rented two cars to take us to Lizhuang to worship our ancestors. When I arrived in Lizhuang, I found the hotel founded by my father's brother, put down my luggage and went to eat. We ate fish in a seafood village near the Yangtze River. It was 8 pm. It's almost 9 o'clock. I hurried to Zuzu's house to visit Zuzu. When I went to Zuzu's house, I saw that three sisters had arrived. My elder sister, second sister and fourth sister are all talking to Zuzu, and I'll go up and say hello. Later, after more than an hour, I saw that most people had left, and I was ready to leave when there were only two or three people left. When I first arrived in the living room, I just saw my sister kowtowing to Zuzu. I saw her kowtow three times. I was very puzzled, so I asked my dad how to kowtow when he was alive. Dad replied that it was out of respect for the elderly.

I got up early the next morning. After getting up, I went to the noodle restaurant "Kuixing Beef Noodle" opened by my relatives and ordered a Yibin burning noodle. After that, we went back to the hotel to prepare Zuzu's centenary birthday party. At this time, the sky suddenly turned from blue to gray, and more and more dark clouds gathered together. I thought it was going to rain. I ran out of the hotel and went to Zuzu's house. I haven't walked a few steps when raindrops as big as beans hit the ground like broken beads. Fortunately, my clothes are waterproof, otherwise they would have been soaked. I hurried to Zuzu's house and saw many people arrive first, and some people arrived later. Those who came later were usually soaked to the skin. It was raining heavily outside, so we had to take our ancestors to the seafood restaurant for the centenary birthday party. When we were at our wits' end, it was suggested that Zuzu wear thick quilts and raincoats, and then let people play a big umbrella. But the plan was soon cancelled because Li Zhuang's wheelchair slipped on a steep slope. Later, the fifth cousin called a tricycle in the rain to take Zuzu to the seafood restaurant for his birthday. Let's walk slowly. The birthday party will be very lively. More than 200 people came, the birthday party ended soon, and the happy day passed.

Why did Zuzu live so long? Because she has done many good things, and one good thing deserves another. If ancestors do good deeds and accumulate virtue all their lives, they will live a long life.