Explain Like I'm 5

Gravity is like a big hug from the Earth!

You know how when you give someone a hug, you pull them close to you? Gravity is like the Earth giving everything a big hug, including you!

The Earth is a big ball, and it wants to keep everything close to it, so it pulls on everything with an invisible string. That's why you don't float off into space when you're standing on the ground. The Earth is hugging you with gravity, keeping you safe and sound on its surface!