Alright kiddo, I'll do my best to explain this topic in a clear and simple way.
Death is when someone or something stops living. It happens to all living things, including plants and animals, and it's a natural part of life. Sometimes people feel scared or sad about death because it means they won't be able to see or talk to that person or thing anymore.
Desire is when you really want something or someone. For example, you might desire ice cream or a toy you saw at the store. It's something you feel inside of you that makes you really want it.
Loss is when you don't have something or someone anymore. This could be because of death, but it could also be because someone moved away or you lost a special toy. When you experience loss, it can make you feel sad and upset.
In Western culture, which is the culture of countries like the United States and many European countries, death, desire, and loss are all important topics. People often feel like they need to achieve certain things or have certain possessions in order to be happy. When they lose something or someone, it can make them feel like they've failed or like they're missing something important.
Death is also seen as something that people should try to avoid or delay for as long as possible. That's why there are so many medical treatments and technologies that can help people live longer. In some Western cultures, death is seen as taboo, or something that people don't like to talk about.
Overall, death, desire, and loss are all natural parts of life, even though they can be difficult or scary to experience. But it's important to remember that everyone goes through them, and that it's okay to feel sad or upset when they happen.