Okay, so a wu is a special kind of person in some cultures who helps people connect with the spiritual world. Imagine you want to send a message to your grandma in heaven, but you don't know how to do it. A wu is someone who can help you send that message.
The way they do this might seem a little different than what you're used to. They might wear special clothes and make special sounds, like singing or chanting. Sometimes they might even dance or use instruments to help them connect with the spiritual world. All of these things help them to focus and listen more closely to what the spirits are saying.
Once the wu has connected with the spirit world, they can ask for advice or help with things like healing, finding lost objects, or even predicting the future. People will come to the wu with their problems and the wu will try to find a solution or answer by communicating with the spirits.
It's important to remember that not everyone believes in wus, and that's okay! Different cultures have different ways of understanding and connecting with spiritual things. Some people might find comfort in talking to a wu, while others might believe that there are other ways to connect with the spiritual world.