Lucid dreaming is when you are inside a dream, but you suddenly realize that it is a dream. It feels very real, but at the same time you know, “this is not real life.”
The interesting part is that once you realize you are dreaming, you can sometimes control it. You can change the place, fly, meet people, or do things that are impossible in real life. It feels like your mind becomes a creative world.
Most people experience lucid dreaming randomly, without planning it. It usually happens during deep sleep, especially when the brain becomes more active while dreaming.
Some people try to train it by asking themselves during the day, “Am I dreaming?” This habit sometimes carries into dreams, and then they become aware inside the dream.
In simple words, lucid dreaming is just your mind becoming aware inside a dream and sometimes even controlling it.