Okay kiddo, have you ever read or heard the story of Macbeth? It's a play that tells the story of a man named Macbeth and his journey to become a king, with the help of three witches.
Let me explain what witches are first. Witches are often seen as people who use magic to do things that seem impossible. Sometimes witches are seen as scary, but in stories, they can also be helpful to a hero. In Macbeth, the witches are said to have magical powers that allow them to see the future.
In the story, Macbeth meets three witches who make some predictions about his future, saying he will become a king. These witches are known as the Three Witches, or the Weird Sisters as they are called in the play. They have a very distinctive appearance, with wild hair and dark robes.
The thing is, Macbeth becomes obsessed with their prediction and starts to do some pretty bad things to make sure it comes true. The witches start to appear to him more and more throughout the play, pushing him towards a darker path.
So, in short, the three witches in Macbeth are magical characters who make a prophecy that sets in motion an entire chain of events. They're kind of like fairy godmothers, but instead of helping the hero, they lead him down a dangerous path.