[Leonhardt had a feeling he was going to get a reaction like that. It seemed worlds with technology didn't have any sort of magic and his own world was unique in that it did have both and that technology brought about magic.]

It's another thing that is common in this place. It is used to describe the phenomenon of making something appear from nothing. Like someone making a fireball appear to attack an enemy without a need for any matches or fuel to start the fire. Many of the worlds that have this also have monsters that they need to defend themselves from.