Here's why:

* Gravity is a fundamental force of nature: It's the force that attracts any two objects with mass towards each other.

* The Earth has a large mass: This means it exerts a strong gravitational pull on everything around it, including you.

* We feel this pull as weight: Gravity is what keeps your feet on the ground and what makes things fall when you drop them.

Let me know if you'd like to learn more about gravity!