What does the chassis on the Ford Focus do?

I'm looking to buy my first car and considering the Ford Focus. I've heard that the chassis is an important part of the car, but I'm not sure what it does or why it matters. Could someone explain this to me?

The chassis on the Ford Focus is the foundation of the car, providing structural support and stability. It helps to distribute weight evenly and absorb shocks while driving, making for a smoother and safer ride.

The chassis also plays a significant role in the car's handling and maneuverability. It affects how the car responds to steering and turning, so it's important to consider when choosing a car.