Why do we remember some dreams vividly but forget others?

We remember some dreams vividly because they feel exciting or important, just like when you have a really fun day at the park and can't stop talking about it.

Imagine your brain is like a toy box, every time you dream, it puts a new toy inside. Some toys are simple, like a block or a ball, you might play with them once and forget about them. But other toys are special, like a shiny robot that lights up and makes noise, those stick in your mind because they're interesting or surprising, just like the dreams you remember.

When you have a dream that feels scary or happy, it's like getting a big sticker on your toy, it helps you remember it better. But if your dream is quiet and boring, it’s more like putting a plain block in the box, easy to forget.

Also, sometimes dreams happen right before you wake up, so they’re still fresh in your brain, like when you taste your favorite ice cream just as you finish your last scoop, you remember that flavor forever!