Magic

Magic is the summoning of extra-dimensional forces to manipulate and alter any and all aspects of reality with effects that defy the conventional laws of nature. Essentially, it's using powers from other universes to reshape ours on fundamental levels. Although compared to the scope of the entire universe, it's within a relatively microscopic and localized area.

Practicioners of magic use potions, spells, incantations, and other talismans or conduits to mentally access and control certain energies and entities from other dimensions that are tangential to our own. IT is because these dimensions possess physical laws that are very different from our own that manipulating these extra-dimensional forces while in our realm allows them to perform a variety of acts and displays that not only defy the universal laws of physics, but also manipulate and significantly alter reality itself.