What does it mean when people say variety is the spice of life?

Oh, dude, it's like when someone says "variety is the spice of life," they're basically saying that trying new things and mixing it up keeps life interesting. You know, like eating Pizza every day might be cool for a bit, but eventually, you're gonna want to throw in some tacos or sushi to keep things exciting. So yeah, mix it up, try new stuff, and keep life spicy!