Yes, large masses have a pull force. This force is called gravity.

Here's the breakdown:

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

* The more massive an object is, the stronger its gravitational pull. This is why planets orbit stars, and the Earth pulls us down to its surface.

* The force of gravity also depends on the distance between the objects. The closer they are, the stronger the gravitational pull.

So, while we may not feel the gravitational pull of a large rock, the Earth's massive size creates a strong gravitational field that keeps us on its surface.

Let me know if you'd like to delve deeper into any specific aspect of gravity!