Can someone explain Variables to me? Options

[KoiKitsune2006]

I never understood what Variables can do for me in RPG Maker. Especially in 2003. I know how to use Switches to make the game none linear. Can someone give me a few examples or give me a tutorial explaining Variables and what they do specifically in the game for me? Because I'd like to become more knowledgeable in RPG Maker so I can make more quality RPG's down the line.