Well... the nature of magic depends on the system. But generally speaking... magic allows the user to manipulate the elements, to interact with and control powers beyond what our bodies are physically capable of.

As for what it's like, well... [It's easier to show someone than try to explain, so Rita holds up a palm and conjures a ball of fire in the air just above it. It's almost effortless, like it's something she does all the time.] It's kinda like this.