What is the purpose of the Electronic Stability Program (ESP) in the Audi A3?

I just purchased a new Audi A3 and noticed it has the Electronic Stability Program (ESP) feature. I'm not sure what it does and if it's something I need to engage while driving. Can someone explain its purpose and when I should use it?

The Electronic Stability Program (ESP) is a safety feature that helps prevent skidding and loss of control while driving. It automatically engages when necessary to apply individual brakes and reduce engine power. It's recommended to leave it on at all times for optimal stability and safety while driving.

ESP is designed to assist the driver in maintaining control of the vehicle during sudden maneuvers or in difficult driving conditions. It's an advanced and necessary technology for modern cars, but it's important to regularly test it and be familiar with how it works to ensure proper function.