[Azure Kingdom, Sky Castle]
Mana, among the humans of this world considered it as a supernatural force or power that may be ascribed to persons, spirits, or inanimate objects, Mana may be either good or evil, beneficial or dangerous, additionally on earth the term was first used in the 19th century in the West during debates concerning the origin of religion
It was first used to describe what apparently was interpreted to be an impersonal, amoral, supernatural power that manifested itself in extraordinary phenomena and abilities, anything distinguished from the ordinary (e.g., an uncommonly shaped stone) is so because of the mana it possesses