Schism

The schism is a powerful barrier arte enacted by Maxwell around Rieze Maxia in Tales of Xillia. Its main purpose is protection of the land where humans with functioning mana lobes live together with spirits, protecting them from the destructive properties of the spyrix technology.

History
Over two thousand years before the events of Tales of Xillia, humans developed the spyrix technology which negatively affected the world causing spirits, and in extent, the world to slowly decay. Maxwell decided to gather his disciples and create a new land, free of spyrix, where humans could coexist peacefully with spirits. This new land is called "Rieze Maxia". Twenty years prior to the events of Tales of Xillia, and Elympion vessel, E.S.S. Zenethra, arrives to Rieze Maxia through a hole. Detecting this activity, Maxwell creates two entities: the Great Spirit Muzét and sends her to Elympion with the order to execute anyone who knows about the schism, and a human woman whom he names Milla Maxwell and infuses with false identity as a means of drawing out the arrival Elympions and kill them.

Trivia

 * A schism is a division between people, usually belonging to an organization, movement, or religious denomination.