What is duality?

Duality means two things that are different but also connected, kind of like best friends who don’t always agree.

Imagine you have a hat. When you wear it, people see you as someone with a hat. But when you take it off, they see you as someone without a hat. These two views, with a hat and without a hat, are like a kind of duality. They’re different, but both are true at the same time, depending on what’s happening.

Another example is day and night. When it's day, you can see things clearly and play outside. When it's night, everything gets darker, and you might go to sleep. But they’re not opposites, they're just different parts of the same cycle. Just like how having a hat or not having a hat is part of the same person.

So duality is when two different things are connected, like best friends who finish each other’s sentences, even if they argue sometimes!