Moon

The Moon is a recurring plot element of importance in the Final Fantasy series.

Final Fantasy IV
In Final Fantasy IV, there are two moons, one of which is the Red Moon, is a very important location. It is actually a planet near the Moon, and home to the Lunarians, the race to which Kluya, father of Cecil and Golbez, belongs. Cecil, after losing all the Crystals to Golbez, goes into the Moon via the Lunar Whale--a ship made by Kluya--that allows one to travel through space. The Red Moon is also home to the God of Eidolons, Bahamut, and the Hummingway tribe.

Final Fantasy IV the After: Tsuki no Kikan
In Final Fantasy IV the After: Tsuki no Kikan, the original moon is revealed to be home to the Creator, an entity that travels the cosmos using this moon, observing planets as their inhabitants evolve and judging whether they are deserving of living and destroying the same planets with this same moon in case they are not.

Final Fantasy VIII
In Final Fantasy VIII, the Moon is the true origin of the monsters, and the reason why these infest the planet. The event where monsters are brought into the planet is called the Lunar Cry.

Final Fantasy IX
The Red Moon from Final Fantasy IV makes a small cameo in this game, as a Tetra Master card. Also, the planet of Terra is of red color, in opposition to Gaia's blue tone. This is also a reference to Final Fantasy IV ' s planet and Red Moon.

Final Fantasy Crystal Chronicles: Ring of Fates
In Final Fantasy Crystal Chronicles: Ring of Fates, the Moon is a manifestation of pure evil created long ago when the God of Light created the planet. When he created the world he extracted its chaotic evil in the form of a moon. Humans who are influenced by its power become Lunites.