Why do humans experience dreams and what is their purpose?

Humans experience dreams because their brains are busy working through the day’s events while they sleep, like a superhero cleaning up messes in a playground.

When you're asleep, your brain takes a break from doing real work, but it still wants to finish what it started. It uses dreams to help with this, kind of like when you're playing with blocks and then go to sleep, but your brain keeps building towers in your mind to remember how fun that was.

Dreams can also be like a practice session for real life. If you had a tough day at school or made a new friend, your brain might create a dream about it so you're ready next time. It's like when you play a game and then practice it again before the big match, you get better.

Sometimes, dreams are just your brain having fun and making up silly stories, like when you imagine flying or talking to animals. That’s why dreams can be funny, scary, or even boring, they’re all part of how your brain helps you learn and grow during sleep.